Why can't we have a hunie-pop like VN/dating sim with Sylveon taking the role of a love fairy, hooking you up with all kinds of Eevee-girls or some other popular waif pokemon, giving you some advice on how to behave and what girls lmight like, judging and evaluating your progress (if you do good, extra character like Garde become available) and so on.
Sex isnt even necessary (at best some gentle saucy stuff), just nice OST, lightweight humor and a thought experiment on how would this kind of dating logic work.