I don't have anyone right his age unfortunately. Mason Skeeter is a couple years behind, but the academic sort. He was also a prefect at school, but I'm not sure if they would have overlapped xD

Sydney Podmore is a couple years older and works at St. Mungo's, not sure how they would meet unless they had mutual friends.

Elsie here is a librarian in London, so they might cross paths every now and then.

Eileen Buchanan is a waitress at the Leaky Cauldron if he ever stops there!

Unfortunately I don't have many quality connections! Sorry!