Hotel close to Pantheon or Colloseum

Use the search function here for "Rome hotel"
Lots of recommendations, use the filter for Type and Date
Forum favorite is Hotel Smeraldo. Another is Hotel Lancelot
You will want to be sure you have an elevator and AC.

You can also use Booking.com to search.
Set your filter for location, budget, # beds, amenities like AC, bklft, elevator etc.
Read the reviews there as can only be posted by folks who have actually stayed at the property.
You can book there or find the hotel website to see who offers best deal

Forum search for Rome hotel- past 2 years
https://search.ricksteves.com/?button=&date_range=2y&filter=Travel+Forum&query=Rome+hotel

Check out Hotel Due Torri Roma. Very close to Pantheon, and has received good reviews in the past. We stayed at another hotel owned by the same folks and were very pleased.

I enjoyed staying at The Pantheon Iconic Rome Hotel. While it was very convenient to the Pantheon and within walking distance to the Spanish Steps and the Trevi Fountain, a taxi ride was necessary to reach the Colosseum.

I’m looking for hotels in Rome, too. Looks like the Hotel Due Torri Roma is permanently closed. Can’t find them on Google Maps and Google searches show only the Hotel Due Torri in Verona.

Their Facebook page at https://www.facebook.com/HotelDueTorriRoma/
says it’s permanently closed.

Hotel Due Torri closed a few years ago, it was in a great location
Look for a hotel nearby

We loved ALBERGO DEL SENATO. Our room overlooked the Pantheon, which was so close we almost felt as if we could touch the facade. But rooms are pretty small.

I also liked HOTEL FONTANELLA BORGHESE...I wonder if that is the sibling of the former DUE TORRI..?

I also recommend the Albergo Del Senato.