I quite liked the short stories with illustrations in the textbooks.

Specifically the spooky ones. Illustrated by the guy who did the covers for "scary stories to tell in the dark". Stephen Gammell I remember reading them over and over.

The ones that look like runny black ink. Terrifying.

As for high school level. Honestly I remember a few required readings and not liking them.
Middlesex , thought it would be interesting but it was just like listening to someone's mental train of thought and was super boring. And catcher n the rye. Super boring about an incel. I probably would have liked the Great Gatsby then, but I only read it after high school.

I was super into fantasy and horror in high school so I didn't care much for anything else.