Ir Shian, head of the RR Order of Sorcerers, from the "Villain's Path!.." series by El Morgoth.

Suitable for any role, both dominant and passive position (though this will be a bit more difficult for him).

By default, he's in love with his stepbrother, Ir Shen, but he's not interested. So you'll need to overcome his destructive feelings so he stops torturing himself and him and moves on to something new, no matter how difficult it is.