Going to plug the Skyrunners here because I am definitely not biased when I say they’re a good group of people. If you’re interested, contact Walmie or Kanatu in-game.
Also, as far as Vulpera goes, I know there was talk a while back about a caravan guild, but I can’t for the life of me remember what it was. Give me a few minutes to look for the thread.
Found it. Or at least the community discord for it. http://discord.gg/VWtmNME