Church choir communities are fun, supportive, flexible (you can walk into any church choir and belong), exciting (yes, I would like to go on a cathedral tour this summer!), and long lasting (sing into your 80s why not?). I heartily recommend them.
They are demanding, however. Think twice if you both sing and have small children. But they sure keep the mind sharp.
Pro-tip: if you’re an atheist, join an Anglican or Episcopal choir. Most of them are atheists too.