Hiya, Shichan!
If you don't mind a class difference, I have Calla here who will be a third year this up coming school year. She literally tries to make friends with everyone and would talk Ginshi's ear off if given the chance.

However, Calla likely wouldn't end up near where Ginshi lives, but if Ginshi ever came to Hogsmeade or sometimes Calla could be in London.

I have a few other students as well but they are all much older.