An institute of knowledge

When Harry and Dudley are ten, Vernon makes the discovery that Smeltings is full, no longer accepting students. On the same day, both boys receive a letter- not to Hogwarts, but to Sterlings Institute for Young Children. It's a prestigious place- the quintessential Dark Academia boarding school with more secrets and layers than truths.
When Harry is twelve however, the wizarding world manages to catch up to him. Used to the odd inner workings of Sterling and its high expectations, Harry and the rest of Sterling- including his cousin, his teacher and mentor Mr. Harte- might just turn the Wizarding World right back around

AKA: Harry Potter but make it gay, trans, and even more dark academia.