Please note this does not include any titles already listed here.
A Lesson in Vengeance by Victoria Lee
Livingston Girls by Briana Morgan
Simon Snow by Rainbow Rowell
The Grimrose Girls by Laura Pohl
My Dearest Darkest by Kayla Cottingham (Coming April 5, 2022)
Bonus: Coming in Fall 2022 (as of now), Fraternity by Andy Mientus
Double Bonus: While I wouldn’t call it a “boarding school book,” It Ends in Fire by Andrew Shvarts is set at a Wizard Academy, so I’m gonna slip it in here