For any game thats either a lewd vn or some lifesim shit, I'll be either Gene or Roy Ourboy.
In any souls like I'll usually just name it after whatever build is based around, character or concept.
For anything like Etrian Odessey I usually pull characters from stories I like and try to recreate them (most recently one group was the cast of a fantasy romance story, next group was DETHKLOK)
Now that I think of it I don't do offensive names nearly as often as I should.