Thank you, Julithia! Springmane and the Wolfmane are the ones currently around.
Springmane is a Tauren only tribe that does late night rp on weekdays. Here is the link to their thread; [H-RP] The Springmane Tribe (Late night/Tauren only)
My guild is the Wolfmane Tribe and we are Tauren centric but not Tauren only. My RL has been a bit chaotic while we did lose our website recently and have been working on updating our roll system. We have also had several members feeling burn out from the game so activity has been low. We are still hosting Story Circle and Mulgore Mondays. Here is our website link; [H/N-Rp] The Wolfmane Tribe Recruitment Open