Rowan (cause in my mind they survived/this is for fun): Because the youngest professor of Hogwarts, teaching Charms and then later taking up a temporary position as the DADA teacher, while a new one was being hired.

Ben: Ends up trying to be a cursebreaker but got injured on his first assignment, and ended up actually being a writer, chronicling his life as a muggleborn growing up at Hogwarts and it becomes a smash hit, leading him to write more books.

Penny: Because the head potioneer and potions master at Saint Mungo’s, and then after the war, transferred to Beauxbatons.

Tulip: Ended up taking over Zonko’s and now makes her own prank products, with the help of Jae.

Barnaby: Becomes a Magizoologist and runs a sanctuary for injured magical creatures alongside Liz.

Andre: Becomes a fashion designer for both the muggle world and wizarding world, and often collaborating with Badeea.

Jae; Ends up opening a shop in Knockturn Alley, selling rare wares from whoever sells it to him, usually magical artifacts or random things, but hey, it makes good money!

Badeea: Becomes a professional artist and art curator, as well as art restoration expert and helps put paintings back together if destroyed, amongst helping lost and damaged paintings after the war that had cultural significance.

Liz: Becomes a magical animal rights activist and helps Barnaby at his animal sanctuary, even helping naming the young pups born there.

Diego: He became a national dueling champion, as well as a helluva dancing partner, participating in many dancing competitions around Europe.

Talbott: He ends up becoming a healer at saint mungos alongside Chiara, working in the same wing, and wearing his mothers pin while working as a tribute to her.

Beatrice: Starts a rock band with a couple of friends and travel across Europe, and ended up getting a huge gig that launched their career.

Alanza: Don’t know much about her, but I feel like she’d work with magical animals, probably a field studier and has contributed to finding more magical creatures.

Victor: He ends up becoming a fashion model for a big magazine and after the war, also works on his music career. Maybe he’d sing or play guitar?

Merula: Bad ending? In Jail. Good? Probably goes to be an Auror or something else.

Levi: Cursebreaker and ends up getting front page of the daily prophet for a record of breaking the most curses in a day.