I'd love a Harry Potter themed PSL. I have this guy (PB: Jensen Ackles) who is a former Auror turned professor at Hogwarts (willing to move him to Ilvermorny for American convenience). He also happens to be a werewolf. It's a sort of headcanon/from a gpsl that he was set in a time after Hermione and them were in the Ministry and the rules surrounding werewolves were a bit more slack as long as they were registered and keeping up with their wolfsbane potion to remove any major threats.
Ideally, I'd love him against Misha Collins but I feel like he's a pretty rare face to see around, so I'm definitely open to others, just no students. Preferably, the guy who's making his potion for him, whether it's another professor or even someone connected to Hogsmeade or who just meets with him once a month (or more if they're friends or strike up a friendship). Hopefully, it'd eventually get to them falling in love (or we can start with already budding feelings), willing to play through transformations, maybe your guy stays with him, and any other side effects we can make up around his time to change, etc.