Hand-holding!? Oh my...
Wellllll~, I think I'd hold hands with someone kind, probably funny and willing to meme and have fun, the kind of person that understands and supports me and I them, maybe play games and watch anime with me, a fellow trans girl would be a plus but not strictly necessary, and I guess most importantly someone who would be dear to me~!

I would be happy to hold your hand~! :D