CD5K > Discord
(Looking for CD5K's Discord server? It's this way.)
This is a list of every known Discord server that is about Neocities or populated by its users. If you run or are in one that isn't mentioned below, feel free to invite me (BytemothOwns#4633) there.
Many of these have similar rules and may forbid: spamming, posting NSFW (outside of designated channels), going off topic, being an asshole, and racism, sexism, homophobia, transmisia, and/or politics.
The popular place to chat about Neocities and its sites.
Totally awesome spot with color roles and huge personalities.
There also exist a few servers which are not directly about Neocities, but are run by members of the community:
Poppin' hangout with cool folks, custom emoji, and live music.
May or may not be a cult which I'm the mascot of.
All messages sent to the original main Neocities server.