My trans ghost girl Willow is demisexual! All she cares about is that the other is a good person, and doesn't care at all about their sex or gender. You're gonna have to be really close with her if you'd want to get anywhere. (But like, she would only go up to cuddling if she wasn't a ghost. Nothing adult, because she died at 14, and therefore appears and is mentally 14.)
There's also Belladonna! She's pansexual. She'll fall in love with almost anyone, but does tend to lean a bit more towards men. But just don't try to date her no matter who you are, it likely won't end well for you! Her companion Bunny is asexual, however. He ain't got no time for relationships.
There's also Periwinkle and Rosen, who are very gay for each other. Their pages are very blank at the moment, but they love each other very dearly and would do anything to find the other again. (They got separated.)
There are more, but they have even less filled pages. Don't feel like you have to draw them all, I just wanted to talk about my characters, lol. But if you ever do decide to, you can go ahead and choose whoever (Willow is my current priority) and do whatever, mostly because I don't want to ask for something that'll take too long and you'd won't want to do it. But then again, if you don't want to draw anyone that's perfectly fine.