Decision made. Now HELP!!

Given your preferences, Amalfi coast is too far away for your time frame.

If you want to add Rome, I would choose only one 'coastal' destination.

Depending on what you mean by 'Tuscany', trains can get you just about everywhere on your list.

Count your days carefully, so as to be realistic about what you can accomplish on this trip, and what you have to leave for another. Do not count your arrival day nor your departure day, no matter what time flights are scheduled for.

Don't buy tickets yet until you have a rough plan.

Rome, yes. Amalfi? Doesn't work well on a short trip that's focused on the north.

Train only? Sure, that's best.

No Venice? That's on most people's "dream" list of northern Italy (disclaimer: I went reluctantly, expecting crass mass tourism. It was certainly that, but I was still charmed and very glad I listened to my spouse - it's worth it even if you're a jaded travel snob).

I love Venice, but I don't think it's a must on any particular trip for any particular traveler. Each trip has only so many days, so the traveler always has to ignore a bunch of great places. However, if the reason for skipping Venice is that someone has told you it's overrun by tourists, you might want to check on current conditions in the Cinque Terre.

If you do not have specific need to sees on this trip, I'd go with the option that is most budget friendly. What is the least expensive way to fly in/out of that part of Italy? Round trip tickets to Florence? Open jaw (multiple destination) tickets so that you can fly into here and out of there? (That option would allow you to fly in/out of Rome and then fly in/out of another airport so that you're not backtracking.)

What speaks most to you about this area? That would make it easier to make suggestions.

There would be 7 of us. 2 adults, 5 kids ages 26,24,23,21, 13. No one
has specific things as of now they want to see.

You don't have 2 adults/5 kids. You have 6 adults and 1 child. Anyone 18 or over is an adult.

The Amalfi Coast is too far south, IMHO, but if you fly into Venice, Florence or Pisa you could work in Rome if you also fly out of Rome. I would skip Portofino if you're doing the CT. You don't need both. It's expensive and doesn't offer much for a group to do.

It's sort of pointless to make itinerary suggestions without knowing what it is all 7 of you want to do and see in Italy? I'd suggest gathering some of good guidebooks for choosing attractions/activities that appeal. And referencing back to the 6 adults in your group? Enlist all of them in the planning! :O)

Keep in mind that the more moving around you do, the more time and money is spent on transport processes and less on sightseeing. Also, for accommodating 6 adults/1 child, you're probably looking at renting apartments (probably with no fewer than 3 bedrooms) and those are often most economical for stays of 3 nights or longer.

Yes, getting around by public transport only is entirely possible depending on your final itinerary.

Adding to Kathys good info, you state Tuscany, do you want to stay in Florence or out in the countryside in an Agriturismo? Or both? How much time if in the the Chianti Hills. Choosing the latter will require at least 2 vehicles for a party of your size. As public transportation is limited. So before you choose to rent a car, please read this along with anyone who may be a potential driver. Download their E book.

https://www.italybeyondtheobvious.com/dont-mess-with-ztl-zones

Only you and your group can decide to include Rome, based on the time you want to spend in the other areas you list.

We traveled with our young adult children and my husband’s brother to Greece last year. There was 7 of us. We had such a fabulous time together we are talking of visiting Italy next year. So my advice is more about traveling with such a family group.
1. Remember your 20 somethings are adults which makes this like herding cats.
2. Don’t move around too much. It means less cat herding.Everything takes longer with a group. We stayed 3 or 4 nights in each location and it was perfect.
3. Go for centrally located so people can do different things if they want. Our group mostly stuck together but not always. Our sons dropped their stuff and immediately went exploring when we arrived. Some of our group came back to house we rented rather than going one day to a museum after lunch. It matters. Especially with a group.
3. Figure out in advance what you want to do. I had a lengthy itinerary that I had developed on a day to day basis after much research that took into account peoples different interests. We did not always do everything but it avoided the too frequent (for my family at least) debates about the day’s activities.
4. Decide how you want to approach participating in activities. We decided people could do what they wanted but we would only pay for what we had planned. It encouraged family togetherness! Still my 20 something sons rented an atv on one island and went off on their own for a day. At the tail end of trip, our oldest son decided he wanted to visit a gorgeous area outside of Athens rather than staying in Athens. He rented his own car and paid for his own hotel and other expenses.
5. Figure out money ahead of time and make it clear what you will pay for and not. You don’t want daily negotiations. We did this and it was wonderfully painless.
6. Make sure you have a space to gather as a group in. We mostly rented houses or apartments for that reason but one island did not have well located larger rentals. There we had individual hotel rooms and we rented the rooftop room where we had dinner sitting outside several nights.

When are you planning to go? In summer, Italy is hot and there are tons of tourists everywhere, so expect lines for buying tickets, lines for sights, lines for buses, lines for gelato, maybe wait times for cafes and restaurants, especially for a party of 7.

Work out how you are going to communicate with each other. Perhaps you can get a data plan for your phones and then use whatsapp for free calls, usually cheaper than a phone plan. Assume that sometimes some of you are going to go in different directions.

The sooner you buy train tickets, the cheaper they'll be.

Last June, we traveled with 6 adults, including two college-aged girls and spent 16 days in Italy visiting Venice, Cinque Terre, Florence, Tuscany (stayed in a B&B 20 km north of Siena), and Rome. We had also considered in our planning going to the Amalfi coast, but ruled it out given that we only had 16 days.

A few things in our planning that may help you in yours. Note: I did most of the planning and 3 of the people traveling had never been to Italy before. Here are the lessons I learned that may help you in planning for a larger group.

• Every time you move, it costs you at least 1/2 day (checking in/checking out of hotels, transportation). While I am fine with that traveling alone or with my husband, it would have been better with our larger group to cut out either the Cinque Terre or the Tuscan country side. It was too much wear and tear on our group to travel to so many places.
• Don't know where you are arriving from, but we arrived early in Venice (9:00 a.m.) and we were renting a flat. The BEST decision I made the entire trip was to book the flat for the night before. We arrived at the flat about 10:15 a.m. and got settled, some napped, some just rested, but we had a place. I could not fathom walking around like a zombie (and me as their lead zombie) after a long flight (one stop over). I know this is a controversial topic on the forum, but with 6 people BEST decision I made this trip.
• Get everyone involved in the planning and on the same page on traveling style, especially if you taking trains. My friends are use to all inclusive resorts and taking multiple suitcases, we had to discuss traveling light. The college-aged girls both travel with one suitcase alone for make-up. It literally took us 6 months to get a suitcase strategy that met everyone's requirements. Luckily for us, we all fit everything in 21-inch suitcases and promised the girls that they could buy make-up in Italy.
• On planning, you mentioned that no one has anything they specifically want to see. If you are all in the same city, get everyone together for planning sessions and put them to work outlining interests. That will help you focus on the must sees. For a group this large, you will need to plan in advance for tickets, lodging, restaurants, tours. The sooner you get that nailed the better. Also, it is a grind being the tour planner, so try to distribute the work. In your planning, leave some white space for relaxing and for allowing people to go out on their own.
• On the car, we rented a large van to travel through Tuscany. Driving in Italy was super easy (just avoid the ZTL zones and keep to the speed limit). Parking a large car is really difficult, took us over an hour to find parking in Siena where the car could actually fit into a space (in fairness, it was market day). However, for the size of group you have you will likely need two cars. If you drive, you will need an International Drivers license for each driver and Italy has very strict drunk driving laws, so those drivers will likely not be drinking at all.
• I would recommend that you stay in Florence and day trip.
• Guided tours for a large group are expensive, but the beauty is that it can actually be cheaper to have a private guide for the size of your group. We did that for the Vatican.
• Finally on airfare, again, don't know if you are all traveling together on the same flight, but our group of 6 was. I booked 4 people on miles, 2 paid tickets and I was 100k on United and I still had issues. The flight over, they changed the configuration of my plane the night before and all my seat assignments moved out of premium economy aisle to economy (some middle seats). Make sure you check the week prior and as early as possible on check-in to see if there were plane changes. I was lucky to catch it early and get everyone the right seats on the way over.

Traveling with a group is fun, but requires more planning to have a good time on the ground.

It seems your trip is not until 2020, so you have plenty of time to plan and take into consideration all of the good advice in the above replys.

So, I'm assuming, since we've not heard back, that the help you're requesting is how to arrange the places you want to visit.

This path might be a good place to start.

Day 1. Travel. A flight to Genoa would seem the most logical.

Day 2. Arrive Genoa, train to either Camogli or Rapallo. Read both of these.

https://www.neverendingvoyage.com/italian-riviera-things-to-do/

https://www.apathtolunch.com/2015/10/liguria-hotel-guide-city-selector-part.html?m=1

With a group of your size, Rapallo may have more lodging options. I'd check both.

Day 3. Rapallo-Santa Margarita/Portofino/camogli.

Day 4. Rapallo. Same as above.

Day 5. Rapallo-Monterosso. Hiking?

Day 6. Rapallo-La Spezia 1 hour. Drop luggage at station, then back to Riomaggori to visit villages not seen previously. Then La Spezia to Florence early evening. Train 2:14.

OPTION. Rapallo- Lucca. Train/bus 2:15 visiting, then continuing on to Florence. Train 1:19.

Day 7. Florence.

Day 8. Florence-Verona day trip. Train 1:34.

Day 9. Florence-Tuscany. Where?

Day 10. Florence-Tuscany.

Day 11. Florence-Rome. 1:31.

Day 12. Rome.

Day 13. Rome.

Day 14. Travel.

This can be done in reverse with a few changes.

Hope this gives you a direction to start.

Outstanding!! Can’t thank u enough for iteneraray suggestions. I know my family will give me a little input. I actually really enjoy planning! All these suggestions, SO helpful! Love the itenerary.