I find it interesting how much information we have about random characters, and how little of others. Some characters we know every detail of their life after Hogwarts and some we barely find out of they survived the battle. The ones we know little about, I'm curious on if you guys have any theories or thoughts.
Lavender Brown (it's debated whether she survived being attacked by Greyback)
Dean Thomas (I think it says he became a professional quidditch player but not what team)(romantic life not mentioned)
Seamus Finnigan (apparently became a qudditich announcer but again not where)(again no romantic toes mentioned)
Pansy Parkinson (almost no information after the battle)
Blaise Zabini (again almost nothing)
Millicent Bulstrode (barely mentioned durning the battle)
These were the first ones I thought of.