a charm of magpies trilogy, it has one of my favorite declarations of love ever

psycop series is also rly good and i love the main character

the administration series if you’re looking for smth fucked up (check out the warnings)

one of the most popular m/m series are the cut & run books. i don’t think the writing is top notch but it’s fun and i like the main characters

i can rec you more stuff depending on which genres you like!