Is there a farming group that does these?
Looking to get the special wings and stuff from it.

There is a rainbow goblin community within the game you can join but I'm sure they nerfed these and if you aint in the game when the goblin is found you cant enter the portal.

How do I do that? Is there a certain chat I can join?
Was hoping to find a discord. This would be my first time farming them.

Press Shift + O

That will take you to the communities section in game.

Click find and type in rainbow. You will see the communities that match what you have searched and you can join 1.

Awesome. Thanks!