There is a discord, if you want to apply you can click on the link and post the following:

1. Your Twitch handle
2. The games you currently run
3. The games you plan to learn
4. Why Keizaron is a meme among men

https://discord.gg/0UUw8zDe2hWlwRsm

for more infos you can also visit the official forum: http://forums.pokemonspeedruns.com/