There is ofc the others that people here have been saying (Dave, June, Vriska, Kanaya, Calliope [this is basically canon to me], Jake, etc), but I have to mention transfem Karkat. I know it's decently underground as a hc, but a old friend of mine (that we sadly drifted away from, harper on the off chance that you see this PLEASEEEE message me, I miss chatting in the icebox!) convinced me that Karkat could make a beautiful woman.