Lets go down the list of my lovelies
Claire: We know these two are going to end up together
Anka: I could see them as friends of sorts, I have a feeling once Anka starts attending the school she will be faking sick a lot.
Ankh: I don't know if they would meet or not, but if so frenemies would be my first thought, if only cause I would see Ankh scaring Vanessa a bit in her wolf form. Ankh could also be how Vanessa finds out about supernaturals.
Devika: I could see coffee buddies maybe? even though Devika doesn't drink coffee.
Zek: Friends, I could see them having long talks over lunch or something, he'd be thankful for another friendly face at the school.
Zeus: Friends, He would be very kind to her, and find it interesting that she knows nothing of inhumans.
Razi: She would want to corrupt Vanessa, maybe Razi could get Vanessa into some tight situations, only to have Claire come to the rescue.
Kristine: I see them being very good friends if only because they work together. Kristine could show Vanessa the ropes of the school, all the while trying not to let on she's a vampire.
Freya: I dunno about these two frenemies comes to mind because well, Freya would want to toy with her for not knowing about inhumans, like teleporting around when Vanessa wasn't looking.
Saskia: I could see friends. Saskia will likely make frequent trips to the nurses station for one injury or another cause of her disorder.