Space before fame
A large group needs space, long tables, and plans that do not depend on one schedule. Places with houses for several people, towns you can walk, and activities that allow different hours work well. A crowded city, with lines and tables for two, tires a group out faster than it entertains them.
The ideal destination is not the most famous one. It is the one that still feels comfortable when you are ten. If sitting down takes a reservation weeks ahead and splits the group across three tables, the place was designed for couples, not for you.