These are mostly binary trans women recommendations, and most of these are by trans authors. If for some reason you want comic book or manga recommendations, I've got those too if you need them. There was also an LGBT spreadsheet in one of the reddit subs for books (either bookrecommendations or maybe fantasy) with a massive list of books, though no indication of their quality.
From the more comprehensive list below, I would recommend:
General Literary Pick: Disappoint Me - Nicola Dinan
General Romance: Chef's Choice - TJ Alexander
Solo Books
Disappoint Me - Nicola Dinan
Great story, often humorous in my opinion. Deals with many aspects of being trans that I think most cis people with little experience with trans people would think about.
Light from Uncommon Stars - Ryka Aoki
This one's pretty well loved. A woman who made a deal with the devil romancing an alien while training an up and coming trans woman who wants to become a famous musician.
A Lady for a Duke - Alexis Hall
Victorian Romance. Does glaze over some of the practicalities of being trans in that era, but I don't think that's an issue. It's okay to allow for a little suspension of disbelief. The romance is pretty great imo.
Pack of Her Own - Elena Abbott
Werewolf. If you like supernatural romance, just read this. Trust me. Sapphic.
Chef's Choice - TJ Alexander
T4T romance with a binary trans man and woman. One of my favorite trans romances I've read. Also, unlike the others on this list, you get a trans man's perspective too. Plus, it's trans experiences from those who are more and less privileged, changing the way they interact with the world.
Orlando - Virgina Woolf
But you probably already know about this one. I'm sure someone will probably get angry at me for including this as trans, but that is what Orlando functionally is in the story, regardless of whether that's how it's meant to be read. It's certainly an exploration of gender of the time, at the very least.
Young Adult (YA) - Fawn's Blood - Hal Schrieve
Vampires. Certainly playing on the idea of a twisted version of Buffy the Vampire Slayer. If you all enjoy YA and supernatural stuff, give it a read. It has various trans characters as part of its cast.
Solo books with trans main characters but don't heavily focus on the trans part
YA - This Delicious Death - Kayla Cottingham
Zombies/Ghouls. People who eat human flesh, basically. Sapphic.
Two Book Series
YA - Dreadnaught Duology - April Daniels
Trans woman superhero main character. Various rep, plus it's Sapphic.
Stealing Thunder Duology - Alina Boyden
First book is very rough and stereotypical imo. The second book is actually pretty fun though.
Trilogies
Her Majesty's Royal Coven - Juno Dawson
One of the main characters is trans, though you won't get her perspective until the second book. I wouldn't recommend reading this specifically for the trans aspect. Also chock full of pop culture references (not necessarily in a good way) even I didn't always pick up on, which is saying something. Overall enjoyable though.
Solo books with trans protagonists that I would not recommend
People Collide - Isle McElroy
Either I didn't get it, or I didn't like it. Some reviews seem to insist this book is great. I personally hated it.
Podcast
This Queer Book Saved My Life - Tons of queer book recommendations.