Filian is already in Mythic Talent which is a talent agency of some sort that has some sort of relationship with OTK.. I think Asmonbald is a founder or member in both.
Looking at Mythic's vtuber talent page.. wtf when did they get all these people? I recognize a bunch of these names, are we sure the big three are Hololive, Noji and Vhojo? I know Mythic is a bit different in that they only handle sponsorships and legal services, no stream management, collabs, music and video production, etc. Maybe that is a better model for most EN vtubers instead of trying to copy Hololive's idols..