Are you looking for bargains (people just dumping) for resale or looking to save on shipping and/or see it for yourself ahead of time before adding to your personal collection?
I have quite a bit of stuff in category 2 if you are interested. With the exception of some of the higher end volatile stuff (ex. Topps Kobe, Lebron, Curry RCs), I generally price my stuff at the lower end of "eBay Sold" items. Could offer a slight discount knowing that if I post it to eBay they'll get their cut.
Also have 70s through 90s hockey if interested.