Fandom PSLs

Looking for some shippy lines. I'll play anyone who's bolded.

Good Omens: Aziraphale/Crowley
Harry Potter: Luna/Harry, Luna/Draco, Severus/Lily, Severus/open (slash and het), Neville/Ginny, open to others!
Sherlock: John/Sherlock

Something for Lily Evans? I've got a soft spot for Sirius and Snape but I'm open to all ideas.