I am thinking about Pre-COIE, and especially classmates of Clark. I particularly want ones that appeared multiple times, rather than one-offs.
In the 1980s, Clark had a high school girlfriend named Lisa Davis. Lana got jealous of her.
I know Pete Ross, of course.
I know Bash.
There was a popular girl Debbie, that Clark had the hots for in the 1980s Superboy, but I don't know if she showed up more than one.
I know post-COIE Kenny Braverman, though I can't say I care for the story.
I'm pretty sure Lana had two brothers - only read a story with one brother, though. And I think they each only appeared once? I know Phineas and Lewis as prominent relatives.
I'm familiar with Chief Parker.