Here's a general list of known communities.  If you are a part of one of these, feel free to post a separate thread to expand on your community and I'll link it back here.  If I missed you, reply to this thread and I'll get it added!

In alphabetical order:

• California Jedi: http://californiajedi.org/
• Temple of the Jedi Order: https://www.templeofthejediorder.org/

This is (obviously) not a complete list