Hello and welcome to MG Horde! 
We have a directory of Horde guilds pinned to the top of the forums here: 
Comprehensive Guide to Moon Guard Horde Guilds - Moon Guard - World of Warcraft Forums (blizzard.com)
In particular I think either The Sunsworn or Ashes of Alar would be a good fit for what you’re looking for!
Additionally, you can try our New to MG Horde Discord, where we have mentors and other community volunteers who will happily get you in touch with a guild or help you with anything else you might need, including a starter kits of items and consumables if you need it.