How about a dragon AU? At first I was thinking a medieval AU where they’re all royal warlocks but couldn’t think of why they would need a young maiden for anything worth kidnapping. Then bam! What if instead, they’re all dragons? Dragons who prefer a female caretaker because normally we’re better at caring for things than men (Not all women, granted, but we do have a better reputation). And since dragons don’t have a specific lore you could do whatever you want with it!