North America: Amazon, eBay, Wish, Newegg.
South America: eBay, Amazon, AliExpress, MercadoLivre.
New Zealand: Trade Me, Amazon.
Africa: Amazon, eBay, AliExpress Jumia, Kilimall.
UK: Amazon, eBay, Tesco.
France: Amazon, eBay, Priceminister, Cdiscount.
Germany: Amazon, Otto, eBay, Zalando.
Russia: Amazon, Ulmart, Ozon, eBay, AliExpress.
Japan: Amazon, Rakuten, eBay.
South Korea: Amazon, Gmarket, eBay, AliExpress.
India: Flipkart, Snapdeal, Amazon, eBay, AliExpress.
Southeast Asia: Lazada, Zalora, Amazon, eBay, AliExpress, Qoo10.
Middle East: Souq, Amazon, eBay.