Hello! I’m one of the officers for the Ebon Onslaught and I can confirm that we are always looking for new recruits for our ranks.
With a joint effort of both Horde and Alliance members, we are one of the biggest death knight guilds on the server. We have rather regular events and role-play, with plans of moving further into the Shadowlands.
So feel free to contact us in-game or by Discord (in the EO thread).
If you choose another guild, I hope you have fun with them!