We've got a good selection of ways to narrow down what stables can consist of, so anything with "Trio" can be specified as "Three people," or anything with "Girls" can be specified as "Female," or anything with "Tokyo" can be specified as "Japan."
I'd like a box called "Required Leader," initially set to "None," but able to access all workers. This way we can list out potential stables, some historical, some ahistorical, that are patterned after their leader. "Jericho Appreciation Society" for Chris Jericho, "Deadman Inc." for Undertaker, "Straight Edge Society" for CM Punk, "The Flock" for Raven, or potentially anything that occurs to a mod-maker. "The Swiss Army" for Claudio Castagnoli, maybe. "Sweeney Productions" for Larry Sweeney.