eBay and Bricklink are obviously the two go-to places, but are there any other sites I can turn to? For context, I would like to collect the Koopalings from the LEGO Super Mario sets. However, only one of the four available is listed on eBay, and none of the others are either listed or sold. If they can be found on Bricklink, parted out, I don’t know how to find them, because I only see complete sets, boxes, and instructions. They are in a $60, $80, and $100 set (I have Lemmy from the Peach starter set), and I don’t want to buy the full sets, as I would not get back nearly as much as they cost by parting the rest of the set out, and I have no interest in the gimmick of the theme at large. Does anyone have any advice, or any ideas? Mostly, I buy sets, and then sell my minifigs on eBay, as I do not generally care about minifigs, but when it comes to finding ones I do want (in this case, brick built), I have no idea where to look.