Ask HN: Best AI Communities?

I mostly read HN, but there are a lot of small AI projects that never show up on the radar here.

I'd like to meet other people working on interesting things. (Folks thinking about what the future looks like 6+ months out.)

I lurk on a few AI subreddits that are a bit meme-y. X has interesting content but can be low signal to noise.

Have you found, or are you a part of, any good AI communities? (Discords, IRC channels, etc.) thanks!