My husband, daughter and I will be in Berlin from September 14 until September 18. My daughter has been to Berlin before and has seen a lot of the major sites. This is the first visit for my husband and I. We are all interested in history, less so in art. I am looking for suggestions for guided tours that will keep us all interested. I have done tours with Viator in other cities and have had great experiences. Any suggestions are appreciated.
Viator sells other companies tours, a re-seller. There is no reason to use them when Berlin lists something like 200 tour companies. If you use Trip Advisor, you can find the top tours, read what people liked and didn't like about their tours.
My favorite company is Insider Tours, which I have used in 5 visits to Berlin, each time with a different theme. For 14 €, you get a high quality, professional, interesting 4 hour tour.
A month-old post asking the same question with numerous responses and the OP's ultimate experience with the tour she/he chose:
https://community.ricksteves.com/travel-forum/germany/best-tours-of-berlin