Never Been Kissed by Timothy Janovsky
I’m So (Not) Over You by Kosoko Jackson
Hummingbird Heartbreak by Max Walker
When London Snow Falls by Hayden Stone
Red, White & Royal Blue by Casey McQuiston
Bonus: By Any Means Necessary by Cam Montgomery is classified as YA, but is an M/M Romance set in college
Double Bonus: All of the above are full-length novels, but for a great novella, check out Coffee Boy by Austin Chant