There is some fanfic that mostly focuses on a few characters or couples, rather than the whole community, on various fic warehouse type sites, like fanfic.net or Archive of Our Own. There was a broader community fic post-GL, I think sponsored by P&G and which may have just had a few writers, that ran for several years online or on Twitter, that fans could vote on or interact with, I think. That was discontinued. I'm not sure if it was archived.
There may also be some stories in the fic archives here, but I haven't checked.
Many years ago, around the mid '90s, there was a day to day fic online called Follyworld that had much of the cast at the time. I have no idea if that was archived.
Thanks for the photo @Alan And they all went on to decent careers post-GL. Lisa did a lot for people.
Staab was very good on PC. She just didn't have a role to play on GL. @Soaplovers explains it well. My guess is she was retooled as a Beth replacement because Judi Evans was leaving. The problem, as GL would later learn when they recast Beth, was that it wasn't the writing that made Beth loved by a lot of fans - it was Judi Evans.
Saddling Jessie with the much older, and frankly, strange Simon did not help, although the actors certainly clicked offcamera for a few years.