Another book that I should have read LONG before I finally sat down to it.
If you liked Winter's Orbit by Everina Maxwell and/or A Strange and Stubborn Endurance by Foz Meadows, you will recognize this genre and enjoy it immensely.
And I appreciate books that basically say "what if the concerns of fanfiction, but original story?" And then write it. By which I mean a deep commitment to characters not as exploration of individual psyches but as beloved friends who one wants to see happy, a balance of plot and romance, a recognition that using a trope elegantly is just as delightful as making up a new thing, and an interest in questions like "how would someone experiencing mental illness navigate a different world than ours" in a way that is neither case study nor cure story.
I don't know why fanfic got so caught on that (something between representation and a strong desire to make sense of mental illness), but it has become more mainstream from there and in a good way. (It's a little bit like watching the evolution of how trauma is handled in fantasy, but I digress.)

Anyway, this is all a very long way of saying that I have a type when it comes to romance and that tyle is stories about gay speculative fiction princes (and the occasional Paladin) and I'm not even a little sorry.