Ginny Weasley: obviously will know her cause she's dating Harry for like...ever? She's a chaser for Holyhead and also super loud and opinionated. I feel like Ginny would be friendly and nice, but I also feel like either these two are going to be very good friends or fight a lot cause they are very similar haha.
Abi Bones: Abi is in Maria's year, but she was a 'Puff. They'd definitely know one another though. Abi is a hot mess, but she's so sweet and nice to everyone I can't imagine she wouldn't like Maria. Abi is a magizoologist and the Caretaker of the Royal Menagerie.