Where to find trade groups?

Hey there, hope I’m not breaking any rules (I am trying not to) but I noticed the trade hub isn’t around this thread… I took a year off of playing and just dumped all my hourglasses into the latest packs. Where can I go to find the best people to trade with? If I haven’t explored enough of this group I apologize in advance… just trying to hop back in and grab a few staples from older sets!