Generic answer: a vampire assuming evevtually the vampire would offer to turn their romantic partner into a vampire themselves.
More interesting answer: a ghost or possessing spirit, something incorporeal where there could be no physical aspect to the relationship. A demon/possessing spirit could be interesting with working out trust issues with letting them control your body. They could ask you to let them in the driver seat for a day but because there is no way to truly know if they’ll give control back, in a way it’d be a test of faith in your relationship.
I think you have to remember that old gods and goddesses tended to be dicks to most humans and other gods because they were gods, they did what they wanted. Kinder gods seems to more a modern thing.
Also given how things started for the Greek gods with their old man, not surprised they’re a bit problematic.
Honestly, I only know the versions wherein Persephone is slightly tricked by Hades, though all the while she is not clear in liking nor disliking him. And he is just very… Adamant about courting her and keeping her in the Underworld.
Perhaps you are right… But still, I think that when one wants to romance the Greek Gods one has to accept their… ‘indecent past’. Does not mean that I approve of what they have done. But Hera was no angel either, she made sure the lives of all the women Zeus got his hands on became miserable, one way or another.
Also Alien is really vague. We could be talking a sexy humanoid like the Twileks in Star Wars or the Asari in Mass Effect, or something like Jabba the Hutt or a Xenomorph.
Perhaps I might have voted for vampire and werewolf, but there are interactive novels that already cater to those predilections. Kitsune is the only option there that might be interesting to explore.
I am a bit surprised that dragon-people or angels are not on the poll. I would go with those as well. Demon, or even the devil, is another option of possible interest, but only if said creature is as charming as they are evil. I find characters with uncongenial personalities incredibly offputting.
do orcs count? because i’ve really been feeling orcs lately for some reason. and of course the typical vampire or werewolf RO. that’s just because i find fangs attractive though. honestly though, i’ll play any game as long as they say i could date a monster/something supernatural. i love monsters