The Queue is currently being maintained by @MartinGG99 . If you have any interest in joining or have questions about the Queue, reach out to him via site PM or through the discord server (same username). Administrative staff (primarily Lumi or Marshmallow Marshall) can give permission for joining the Queue and posting signups as well, but that is generally reserved for when the setup being hosted is a closed game and/or the game would make estimating balance difficult without knowing the hidden aspects of the game.
FM Queue:
There is nothing in the queue at the moment. Feel free to contact FM staff if you're interested in hosting!