There in one here:
https://boardgamegeek.com/boardgame/348220/deep-rock-galactic-the-board-game/forums/0
BBG states that DRG has 3.2k self-registered owners in its community.
Comparing to
FFG/Asmodee's X-Wing which has 7k owners
DRG is bigger than I expect it to be. And that was huge when it was around. Even that didn't get its own forum.
As Snrub alludes to above, post in the existing forums. Prefix all threads with [DRG] (so call it "[DRG] How about that new mode..."]).
That way, once enough such threads exist, there may be reason to get a forum.
But, as Legoburner says in the Introductions post:
"Welcome to Dakka Dakka, arguably the Internet's oldest wargaming forum"
Dakkadakka is not a videogame site, nor a boardgame site. There are sections for that sort of thing, for crossovers, other media, etc. I've played the DRG game on the
PC for quite a while, but I go elsewhere for chats about that. There isn't even an acronym popup for 'DRG' here yet, as nor does
COD and others.
But getting a forum for a non-wargame usually needs a big following. If you can muster up that following here, it could happen.
We arent Mods though, someone will probably be along soon enough.