Hey folks -
In CL's contribution list https://common-lisp.net/contribute one of the open items is for establishing a community forum.
Coming from Elixir, much of the community has fallen under Elixirforum https://elixirforum.com/, with Rust https://users.rust-lang.org/, Clojure https://clojureverse.org/, and even recently Racket https://www.reddit.com/r/Racket/comments/qqe4d6/racket_discourse/ opening their own Discourse forums.
Altogether, I get a lot of use out of it w/ Elixir, and it seems to be a popular solution for establishing a community hub.
They provide free hosted solutions for Open Source projects, which we can infer Racket received based on their URL. I can discuss with the Discourse team what our options are given there is no real Common Lisp open source project. If all else fails I can check out self-hosted solutions as $100/month is pretty hefty.
If no one has already begun work on a community forum, I can take this up.