The Greater Boston Area has an unbelievable wealth of options for spending your free time.
Here are a few sources of info that you may not have come across yet:
For years, we've been looking for a good calendar of classical music events in Boston. We think we may just have found it http://www.classical-scene.com/calendar/
Find a walkable city near you
Find a Little Free library near you: https://littlefreelibrary.org/ourmap/