If you like school stories

A Great and Terrible Beauty by Libba Bray.
After the suspicious death of her mother in 1895, sixteen-year-old Gemma returns to England, after many years in India, to attend a finishing school where she becomes aware of her magical powers and ability to see into the spirit world. If you like this title, then there is a sequel called Rebel Angels.

Burning Up! By Caroline B. Cooney.
When a girl she had met at an inner-city church is murdered,
fifteen-year-old Macey channels her grief into a school project that
leads her to uncover prejudice she had not imagined in her grandparents and their wealthy Connecticut community.

What My Mother Doesn't Know by Sonya Sones.
Sophie describes her relationships with a series of boys as she searches for Mr. Right. This is a novel in verse. It's quite funny, but Sophie also faces some tough decisions.

Stargirl by Jerry Spinelli.
In this story about the perils of popularity, the courage of
nonconformity, and the thrill of first love, an eccentric student named Stargirl changes Mica High School forever.

The Year of Secret Assignments by Jaclyn Moriarty.
Three female students from Ashbury High write to three male students
from rival Brookfield High as part of a pen pal program, leading to
romance, humiliation, revenge plots, and war between the schools.