Hi there! There are in fact several Troll guilds and Troll friendly guilds on the server, my friend. I’d recommend checking out this thread over here for the Troll Roleplay Community at Trolls of Azeroth Roleplay Community! for the server and also look at their discord at https://discord.gg/qvUk6w8 as well. I believe the thread mentions at least twelve or thirteen Troll or Troll friendly RP guilds.
WRA also has a Community Discord Server which can be found at: https://discord.gg/nhYgPEZ