It’s been years of this, so you already know: there are only books with major trans rep here, which is to say with main characters or love interests (or actually important side characters). I like to think that choice is self-explanatory. (And as always, if you catch any mistakes, please leave a comment!)
Also, a lot of those titles are (or will be) available on Scribd, so if you want to check out that service but don’t have an account yet, use my invite code to get 2 months for free! (This also gives me one free month.)