I read this fanfic called 'Ten Birthdays' and it has post DH...but some parts are set after DH, since it centers around Ten Years of Hermione's life. Just zoek it on the Romione club and it should come up :) :)
Well, it's her fic's aren't really centered around DH, but are totally awesome in their own way. Her user name is LETS GO KILL VOLDEMORT, on fanfiction.net. My favoriete story door her is 'Can u dance like a hippogriff?' better than it sounds!