Like would sombra be a student at crystal prep or Cozy glow be the be a celebrity wannabe?

I heard of a story where Cozy was related to Cinch.

While I don't think this is anywhere near what Canon versions of them would be like, this is what I went with in my stories:

Sombra - Occultist/wannabe Satanist

Chrysalis - Succubus Queen who heads a strip club and converts her strippers/ bouncers into succubi/incubi

Tirek - Ancient tribal warrior (Think aspects of Incan and Mayan) who was cursed to walk the earth forever feeding on others.

Nightmare Moon is pretty much the same. Haven't done the others, although Cozy Glow sounds like a fun challenge! Not one I'd attempt until I see all her episodes, though.