Hey Haldex, our guild sounds like a good fit for you. Its an Allliance guild, but guilds are cross-faction now and you could remain horde. You’re able to Q arenas and RBGs with alliance players & we tend to do cross-faction wpvp events with our guild members.
[A] RBG/ PVP Guild recruiting - Sargeras - World of Warcraft Forums (blizzard.com)