This is going to be very long and I apologize in advance for making you guys read through so much! The plotting bug cannot be stopped!
@'Juliana Binns' - A fellow MCHB spinster !! I love the idea of these two having a pre-established friendship and Juliana also serving as one of Posey's ever-mysterious "research connections", particularly regarding the subject of lycanthropy. They can swap books on the subject and I can even see Posey making notes and compiling them into a compendium for Julie to return to. Casually owling each other their respective research findings with thick slices of Christmas cake like it's no big deal. Oh, and additionally, Posey is close with Jules's niece, @'Emma Binns', and probably sends Jules owls about how she loves her and her library enthusiasm to pieces XD
As for most of the students, I think Posey would more or less get-on with the majority of them. She's not a stern individual by any means, often serving as a gentle enabler to students' hopes and dreams. Though I can see her organizing many a study group session and maybe even a "Big/Little Owl" program, where older students (7th and 6th Years) can help younger ones with their studies, should they volunteer to do so??? I don't know if Persephone has the power to grant extra credit, but maybe she can add suggest that points be added to their houses for it???
For instance,
Eldin Bones and
Sweetie Whitledge likely already know each other since they're in the same house and year, and could easily be study buddies. But they could also help
Seneca Lestrange and
Hesper Gamp with their studies if they wanted to, because they probably know the subject material by heart now? Since
Nelson Higgs is in the library a lot, maybe he could also be someone who volunteers in this way for extra house points too?
As for study groups, I'm thinking
Eldin Bones and
Sweetie Whitledge for the 7th Years,
Frida Lestrange,
Seneca Lestrange and @'Jemima Farley' for the 6th Years (There's also
Ruby Urquart to consider, though I can see Persephone working one-on-one with her), and then maybe a condensed study group for 1st and 2nd years with @'Emma Binns', @'Alina O'Malley', and
Hesper Gamp ???
I can see Persephone working independently with
Cameron Gillenwater and
Holly Scrimgeour too, seeing as he needs to be dragged into his studies kicking and screaming (and maybe with the threat of ensuring that he's banned to the sidelines if he doesn't get his grades up xD), and she seems to have developed a negative reputation (which Persphone would probably understand and also try to curb by giving her tasks and keeping her so sufficiently distracted, there's no conflict to be had).
Meta Lestrange will serve as the source of her greyhair, but I love it! And despite being a pain in the ass, Persephone secretly hopes that her fiery side never dies (and also probably hides her to be quite funny, though she tries to not encourage bad behavior too much xD). But we can definitely do a thread like that, so long as Meta expects some consequences to her actions!
I think that's it for the students, but don't hesitate to tag me if I missed someone!
Elizabeth Cardew and Persephone can definitely be friends! I think they would get on swimmingly, considering they're based off the same source material! Persephone will definitely visit the museum during holiday breaks and I can see them sending one another owls if/when they need help dicephering certain texts. Maybe Elizabeth can even help Persephone learn Gobbledegook and Mermish!
Outside of @'Richelle O'Connell' (Naturally, given their secret albeit longstanding romance),
Carmelina Cramming might be one of Persephone's favorite faculty members. She's developed a close friendship with the herbology professor,
Mason Skeeter as well, so maybe they can form something of their own collective "golden quartet" so to speak, trading in knowledge and gossip in equal measure! Plus Persephone is absolutely fascinated by all things cursebreaking and archealogical, she just never possessed the husband necessary to fund any trips! XD But gallivanting off to Cairo is definitely among her ever-growing list of life goals and she'll be sure to ask Carmelina all about it.
While she could've known
Porphyria Dempsey during their school years, I don't think that she would necessarily spend much time with her nowadays, especially seeing as she's trying to remain relatively discreet. However, I do think that she would pour over her poetry if she was given it!
Despite being in different houses,
Jude Wright and Persephone could've been childhood best friends throughout their Hogwarts Years! I want to say that their mutual beliefs on society would lead to Persephone telling him about the professor she's in love with, though I don't think that she would name her for the sake of respecting her anonymity. She could be an unofficial alliance to his revolutionary friends, without outright joining said revolution because she doesn't want to lose her position at Hogwarts. XD
Parthenope Lufkin could definitely be faculty friends with Persephone! I want to say that, if she ever needed someone to talk to about her confusion, Persephone would readily assure her that nothing that's said within the walls of the library ever leaves. Maybe they have some heart-to-hearts after the students are all in bed???
She could also be friends with
Adelia Lovegood! Even if they were a year apart, their Ravenclaw affiliation could've helped form a friendship! Persephone would've volunteered to help her with her studies if she needed it!
I think I addressed everyone, but again, if I missed a character or plot, feel free to thwack me on the nose and let me know! <3