So if you want it to be part of the anime club, you can suggest it for a nomination on the club home post here:
Right now we’re watching this anime with the club, and the poll for the next anime has recently concluded with ノラガミ winning, so probably the next pool is in late march/early april depending on the ノラガミ schedule.
But there’s also no rule that a club has to be part of the overall anime club, so you can always just start a club. If you’re doing a stand alone club, it’s probably best to post a thread gathering interest a couple of weeks before you plan to start to see if anyone wants to join, but again, there’s no limits on who can do a stand alone club when.