Cxcsas has a bunch of omegaverse but I’m sure you already read those. She has Royal au too not exactly historical

MsOdds had a a/b/o fic that’s really good 😊 might also include found family that you like. It’s incomplete and hasn’t been updated in a while 🫤

Empty without you is a fic thats omegaverse and historical and found family & updated frequently I think the author also had a gang au

There’s another royalty au I can’t remember the name.. flame blossoms or something I’ll have to get back to you