@TecriHey there! So I have some ideas for my @Kyun Suhoand a couple of your students! Feel free to add/subtract because these may turn out to be messes, who knows.
SUHO + LEXI. So both of them attend Tally, which is just fine, and Lexi seems to flirt a whole lot. I can imagine Suho probably being one of her "victims". He'll probably be uncomfortable and feel stuck, which may motivate her to continue bugging him. He's really bad with people, least of all people who openly flirt to his face (and he has a lot of those), so I can see how this would be an interesting dynamic in the sense that she just won't leave him alone and he's just trying to run away. Mind you, Suho's a Dhampir so things may get a little dangerous if he's annoyed, but in all honesty it's probably good for him to have some company given how often he deliberately isolates himself from the student population. He'd appreciate how quiet she is for he himself isn't the loud type, and I can see him getting flustered each time she tries to make a move on him. This can go a variety of different directions depending on what you like!
SUHO + ASPEN. Both of them do Quidditch, which is always a plus in Suho's books. Plus they are the same age, so they'll probably have had plenty of opportunities to see each other (and the Kyuns are pretty much a family that most if not everyone have at least heard of). They'll definitely have had some rivalry on the pitch but Suho isn't the type to hold petty grudges or rivalries like that, so he'll probably just see her as the "Bourke that plays Quidditch", though Aspen might try to get in his face. Also! Both get pretty angry pretty easily and that can either be disastrous or beneficial for the two of them depending on how the situation plays out. Suho bites, literally and figuratively, so she may either distance herself from him or consider him a friend, because, he also hardly makes friends and really does need some ^v^
SUHO + COLETTE. They'll have the most cause to interact! Both are from Sturt and in similar years, plus they're part of the Quidditch team together and. I think their personalities would also mesh together the most, given how both are generally cold and aloof. She would definitely also understand the struggles of being a halfbreed for she is a Veela and he a Dhampir. She wouldn't have to worry about him being offended by her sarcasm or words because Suho also has a whole store of that coming along, and both are also known as the Ice Queen and Ice Prince of their year. I can imagine she and Suho hanging around each other the most when he isn't busy trying to harass his siblings and they'll pretty much be a power duo in their house. Again, feel free to add/subtract!