I would second Recurse Center. I've heard universally great things!
Recurse center is awesome! The community is curious, kind and supportive. I did 2 batches there and each one expanded my horizons as a programmer.
Self-plug: consider Handmade Cities. We have a simple meetups [0] page if you decide you appreciate our ethos. Hopefully we have an active meetup location near you?
In any case, good luck on finding the right community!