these are some kinds of things I really like to read:

• character development
• vignettes
• non-linear narrative
• pining/mutual pining with a happy ending
• angst with a happy ending
• slow burn
• casefic
• plotty fic
• mysteries
• university/students especially if the main plot is not romance-related
• superpowers/magical realism/science fiction/space/urban fantasy
• problem-solving
• puzzles
• happy endings
• enemies to friends (or more, but that's optional)
• accidental dating
• best friends
• meta
• tongue-in-cheek
• cultural/historical references