I just finished an M/M Romance, "Something Wild and Wonderful" by Anita Kelly (2023). I've read dozens of M/M romances, and I can't remember another where I enjoyed both the main characters and the story as much as I did in this one. The book is, ultimately, about journeys. It is about two gay guys who meet while hiking the Pacific Crest Trail, which physical journey is both the armature for the plot and a metaphor for both the individual journeys of self-evaluation, self-discovery, self-realization, and self-repair the two men are each on and the emotional journey that their romance becomes. Yes, this is very much a slow burn, and yes, as in most of these books, they eventually hit a crisis, and yes there is an HEA ending. But the two characters are drawn in such wonderful, even emotive detail that you are barely conscious of the tropes. By the end of the book, you know them so well, and like both them and their relationship so much, that you are left with a powerful desire for a sequel, which, alas, is not available. But you are also left with two of the sweetest gay characters you've ever met and one of the most sensitively portrayed gay romances you can find in this fiction genre.
https://www.amazon.com/Something-Wild-Wonderful-Anita-Kelly/dp/1538754886
https://www.barnesandnoble.com/w/something-wild-wonderful-anita-kelly/1141725049
You can find the blurb at the Amazon and Barnes and Noble links, and there are customer reviews there, too.
Here's a review that captures a lot of why I enjoyed it so much (and you can also read the generally gushing reviews at goodreads):
https://smartbitchestrashybooks.com/reviews/something-wild-and-wonderful-by-anita-kelly/
https://www.goodreads.com/en/book/show/61399138