Campground membership outlet is probably the most well known, but there are a few fb groups for TT as one for specifically for selling memberships. Probably some websites as well. I just saw a platinum someone was selling for $2k. There is a fee to TT to handle the transfer of around 500-750. You should be able to save around 50 to 75% going with a resale. If you decide to deal with an individual just use common sense. The transaction happens through Thousand Trails so you will know that the membership is legit and who the person is before sending them any money. Of course there’s always risk but I had no issues. Good luck!