The one that immediately springs to mind for me is Elissa and Daphnis from Tears to Tiara 2. He cross dresses as a woman so he can follow her everywhere, he's definitely the more feminine one, and he's so dedicated to his cross-dressing that at one point he needs to dress like a man so instead of removing his woman's clothes, he cross-dresses as a woman cross-dressing as a man. I mean, that's some dedication right there
Also Sorey and Mikleo from Tales of Zestiria but that's not "official" even though it's pretty obvious to me