Rory has quite a few WIPs she is working on, such as "For Richer or Poorer" and "Ardor". She is a really talented writer, although she doesn't really write in canon for the most part. You can find her stuff at galeandrandy. Her one piece that I check on religiously though is a post-513 series called "Tenebrosity". I have raved about it to everyone I know, so please check it out here: rhapsody_series. You won't be sorry!

kiera81487 is writing a post-513 story called "Unexpectations". She classifies it as an mpreg, but the whole pregnancy thing happens before the story starts, so it's really a kid!fic with a whole lot of angst and Brian/other, jealous Justin, daddy!Brian stuff thrown in. I'm really enjoying it even though I generally dislike mpreg.

And last, you MUST check out q_dicted's "Stronger". There is only one chapter so far and she is a notoriously and self-admitted slow writer, but she is probably one of the best writers I have encountered in any fandom... Her "Valediction" is without a doubt the best piece of fanfiction that I have ever read, so run, don't walk... (Be forewarned, though, if you're going to read "Valediction", please note that it is a death!fic.)

Enjoy!