Information about the Forest Fanworks Challenge is here.
I've signed up for Remix Revival, so my Marlows fic is available to be remixed as part of that exchange. If you'd like to participate, there's information here.
I'm also going to nominate some of the rarer characters and relationships in the fandom for Fandom Growth, an exchange for ultra-rare fandoms, characters and relationships. If you're interested, there's more information here.