A Safe Girl To Love has a mix of stories, mostly more mature: https://www.amazon.com/Safe-Girl-Love-Casey-Plett-ebook/dp/B00XNPXEMU

Nevada is kinda the penultimate trans fiction. Early adults go through life, which is hard and very trans. Not a fan of the writing style, but I loved the book anyways: https://www.amazon.com/Nevada-Imogen-Binnie-ebook/dp/B00C03P6Y0/ref=sr_1_1?ie=UTF8&qid=1521046300&sr=8-1&keywords=Nevada

Superhero YA Trans Narrative. The villans aren't only evil super powered weilding things, they're also your TERF parents: https://www.amazon.com/Dreadnought-Nemesis-Book-April-Daniels-ebook/dp/B01MQD9FWW/ref=sr_1_1?s=digital-text&ie=UTF8&qid=1521046361&sr=1-1&keywords=dreadnought (There's a sequel to this one too, it's not about teenage romance but is YA).

There's other stuff out there, but I feel like these are the big ones right now.