itch.io has been my go to for both hosting my interactive projects as well as finding good community within game design. Not only is it where you can find game jams to work on side projects, but there's some pretty good forums & dev logs that allow you to find dedicated people.

I think it's only coincidental that I'm a game developer & on hacker news. I haven't seen a lot of cross-over until this post. Glad to see it though.