https://www.amazon.com/
https://www.ebay.com/ (個人/二手貨)
https://www.craigslist.org/ (地域/二手貨)
https://www.mercari.com/ (二手貨)
https://www.facebook.com/marketplace/ (二手貨)
https://www.etsy.com/ (手工藝品)

https://www.aliexpress.com/
https://www.shein.com/