As a mythology dork this anon would adore a fill about daedra/mortal dynamics. Maybe there are heroes all around Tamriel who are half-daedra; maybe a daedra - or Daedric Prince especially, or whatever take your pick - is infatuated with a human, or just plain wants to bed them. Maybe they end up pregnant, maybe they don't. Maybe there's a prophecy, or maybe they want to pull a Dionysus/Ariadne and make them their immortal consort in the night sky.

I have a kink for just about anything except buttstuff and non-con (dub-con works, however), things that could work well with this are a het relationship and impregnation, or maybe you could make it about a character who's half-daedra and their life, struggles, thoughts on daedra etc. I'm happy with anything unless otherwise stated, it can range from an angsty genfic to a hot daedric sexathon and/or consensual gang-bang, totally up to you anons!