In Amazon, to become a verified seller you have to register yourself as a seller and you have to receive a TIN number from the tax department . I have no idea whether this works here or anyone is free to buy and sell on his own .
I do not think its even worth it, I would just sell it here on the forum and on some other forums, its depending on what you want to sell of course.
You can also use Openbazaar or Bitify as example.
You're need think again if the bitify and openbazaar is not better than this place, so if you're wanna for searching the fastest place for sold your stuff trying for the global store like amazon is better with putting a note if you accepting bitcoin payment.