I never wrote fan fiction before, but I got the urge frequently during the run of The Righteous Gemstones, to "fix" terrible plotlines, expand upon minor characters, and respond to the incessant "that doesn't make Kelvin gay" fan complaints. There are 25 on Archive of Our Own, but I've only reposted 18 here:
Before Season 1
How do I Know If I'm G...: Pontius pressures his older brother, 16-year old Gideon, into coming to his sleepover. He invites the "juvenile delinquent" Manny, gets his first kiss, and wonders if he is g___.
During/After Season 1
Is there Sex After Death? Scotty dies in Episode 1.8, but Grandma Aimee-Leigh guides him through all the moments of Gideon's life, so he can forgive him for all the moments lost to pettiness and fear.
Kelvin and Keefe under the Christmas tree. After the events of Season 1, everyone thinks that Kelvin and Keefe are boyfriends -- except for Kelvin.
During/After Season 2
BJ's Angels. I envision Gideon and two members of the God Squad getting jobs as detectives in a Charlie's Angels parody, with BJ as Charlie.
During/After Season 3
Bondage doesn't solve everything. There were several hints in Episodes 1-2 that Kelvin and Keefe were into BDSM, so I wrote a story where they guys break up during a BDSM scene, then reconcile when Kelvin arranges for Keefe to get a job as manager of the Gemstone Health Club.
Kelvin's Rebound Date with Percy. Percy appears in just one scene, as an interior designer working on the church board room. In this story, Kelvin is distraught after the Episode 3.4 breakup, and his siblings suggest that he move on...with a date with Percy.
Gideon Moves out of the Friend Zone. After the Episode 3,4 breakup, Gideon gets the nerve to ask Keefe out. They have a hookup, but is that enough to move out of the friend zone?
The Kiss Heard 'Round the World. The day of the Episode 3.8 Kelvin/Keefe kiss, seen through the eyes of Amber, Gideon, Eli, Judy, Keefe, and Jesse.
More after the break