I have a number of graduates for you to sample at your convenience.
Athena Rookwood - Coming up to twenty years old, she is married, has two children of her own and her infant sisters-in-law are dependent upon her. She is a firecracker, a wise-ass and doesn't like to be second guessed. She's already experienced Azkaban and her Death Eater beliefs are steadfast despite having cooled somewhat. She's in need of a friend, I think - or, probably, an affair. :3
Helene Delacour - A troubled Healer who has a potion addiction but shows no outward evidence of it at all. She's a serial dater, a Veela, and as such is something of a commitment phobe. She's got a listening, willing ear, however, and is a good friend, if nothing else. She's also in the Order - she's a twenty something.
Elijah Krum - A corrupt, morally debauched, sexually debauched politician whose primary drive is women and his family. He is engaged to be married, vying currently for an affair with a younger woman - the eldest daughter of Athena's father-in-law - and generally has no respect for himself or those around him though he claims he does. Beneath it all, he's a good person and a very good friend. Eli is Order-centric but has Death Eater leanings and sympathies. He's twenty.
Er..I think that's it.