OKAY SO @luucypevensie ily and I love Cordelia so here are just a few thoughts on potential crossovers!!!
Alright so tbh Cassia just needs friends in general!!!
I mentioned it a bit here but Cassia’s sorting is like, the biggest deal in Hogwarts and people generally give her a wide berth after that because Yikes™
But Cassia is v smart and especially good at potions so maybe Cordelia decides to basically say “lmao fuck that” and invites her to join her and her friends in a little study group?
Older Slytherins are already used to her being in the common room because of Snape so no one would bat an eye at that lmao, and Cassia has no sense of “slytherins are evil” so it would work well
Cordelia learns more about Cassia’s childhood and probably teams up with Hermione to set Snape on fire tbh
They would be the absolute ultimate Slytherin-Gryffindor duo I love the thought of them tbh
And in later years as things go to shit they’d just get closer and be super protective of each other???
I could see them as a ship or as Cassia being the biggest Cordelia x Harry shipper ever!
Venus wouldn’t really be sure what to make of her at first because basically everyone she knows already knows everything about the wizarding world
But she’d be happy to answer questions and would even be willing to learn about the muggle world!
She would probably say that it was so that she would know how to uphold the magical secrecy laws or something but honestly she’s just curious
She would love Jane Austen books so maybe she asks about one that Cordelia is reading which turns into Cordelia inviting her to join the book club?
Venus doesn’t speak her mind much for a long time because of how she was raised so consider: Cordelia is Venus’ anger translator
Best roommate squad ever and just the best squad with Daphne and Tracey!
oooh okay so for a bit of context, Phoenix doesn’t go to Hogwarts until Goblet Of Fire where she goes with the Beauxbatons delegation
Obviously her last name causes quite the scandal so she’s in that position of no one talks to her but everyone talks to her
So maybe one day she’s sitting at the edge of a table alone having breakfast and Cordelia just goes over to her, introduces herself, and basically drags her over to sit with she and her friends instead
She’s the first friend Phoenix has made at Hogwarts!!!
Cordelia is 100% ready to tear into anyone who treats her like an animal in a zoo
She’s also the most hyped when Phoenix officially transfers to Hogwarts
They could spend hours comparing cultures, both between wizarding-UK and wizarding-France and muggle-UK and muggle-France!
Phoenix speaks English fluently but reading it is a bit harder, but Cordelia never makes her feel bad for it!!
By virtue of being the first person in Hogwarts that treats her like a person and not an exhibit, Cordelia (and probably Daphne and Tracey!) is the first person that Phoenix ever talks to about her family/childhood
Slytherin-Hufflepuff besties yes please oh my god
Ooh okay so Harry and Ara first cross paths in Diagon Alley (I’m not sure if that’s going to be in the story or pre-series though) so maybe they met then too?
If not, they could totally meet on the train!
Ara is very withdrawn at first because she’s so worried about accidentally revealing her secret, but she’s a total bookworm and very familiar with muggle culture because of Ted, so maybe she sees the book Cordelia is reading and comments on it and they hit it off!
Ara is 100% against the “all slytherins are evil” thing because like, she was raised by Andromeda Tonks and knows better, so she would definitely stand up for Cordelia to Harry and Ron!!
And Cordelia would totally defend Ara when some of the Slytherins (notably Malfoy bc he’s her cousin and they have a history™) comment on how she’s disgracing the Black family by being a gryffindor
Cordelia would probably also be the first person that Ara would tell about her dad in Prisoner Of Azkaban!
Could see them as best friends, girlfriends, or an ot3 with Harry!
I think that she and Miranda would probably hit if off pretty fast bc Miranda is just as smart as Hermione but less competitive so like, she’d love having a little fun rivalry with Cordelia (i saw you mention that hermione took it a lot more seriously than cordelia but miranda wouldn’t)
But I could see Miranda being kind of hurt/worried when Cordelia and Hermione become friends bc she just doesn’t want to be cast aside for her sister again
But Cordelia would very emphatically assure her that that would never happen!
Miranda would still hesitate to let Hermione into their group (I feel like she’d def be part of the Jane Austen book club!) at first but would slowly warm up to it
And then the badass genius girl squad would expand!!!
Also tbh Miranda would have a huge crush on Cordelia but she’s a little disaster bi who would take until like, probably Goblet of Fire, to realize that she has actual feelings for her and not just friendship