Not in Boston but 3rd Avenue in Burlington has restaurants and a restaurant/bowling alley place that might be good for a group. The area is designed to be pedestrian friendly so you could get dropped off & go to a couple of different places.

https://3rdaveburlington.com/

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And the Burren in Somerville is a great place for a non-touristy evening.

http://www.burren.com/music.html