There are several DVC resale sites . The TimeShare Store is the one I looked at when we were looking to buy. We ended up buying through DVC but they seem to have a lot of listings.
You could by as few as 100 points through DVC a month or two ago and it wouldn’t cost as much as usual. DVC also finances your purchase if you are interested in that. We didn’t have closing costs and got all the current points so it made sense for us to buy through DVC and not resale.
There’s a DVC referral thread if you would like to use a member here as a referral to get information from DVC. They will send you all the current information with not strings. I called our guide for information and didn’t buy in for a couple of years, in that time she didn’t call me one time. I like that.