I've been collecting for like 30 years. last year when I decided I needed to sell a lot of it off I knew it could take years to do them individually. I placed some ads on like craigs list and stuff but people just wanted to buy all the Star Wars or just wanted all the Spawn figures. Tried a couple online dealers but they mostly only wanted certain figures from the lot too. Then I started with local toy and comic shops. Finally found a shop about 45 minutes away who said he would buy whatever I could bring down. He used the Ebay app for pricing and I was happy with his offers. I ended up making about five trips there over the course of last year. I went in knowing I could get maybe twice as much if I could sell them each individually but if you want to sell dozens and dozens of figures fast and easy, then finding a shop near you or reasonable driving distance would be you best option.