(100$ ~ 500$) Amazon/eBay sign up and listing guidance. (and other marketplaces)

(100$ ~ 500$) Amazon/eBay sign up and listing guidance. (and other marketplaces) Hello. Thank you for having interest in this topic. I am trying to be a seller in multiple online marketplace. Such as , eBay and etsy, Amazon. Names you might have heard of already. But as I know, each Marketplace has each different standard and requirements to be a seller in their platform. (for example) business license, etc. They would demand each different requirements to be a seller. So, This topic I want a shortcut on it. Thanks to someone who has been through this process already. I need guidance how could I be the seller. But before dipping into specifics, there are several things you should know. Note . (1) The many marketplace you've signed up and being a seller, The better. Please let me know. etsy, amazon, ebay, walmart, lazada, pretty much any online marketplace you've signed up, Before sending the bid. Or else it will be filtered and I wouldn't award this project to you. or even proceed to exchange message just ignoring. Since they are too many useless awkward bot-made messages dumping the bids. - The more marketplaces you could guide, the more I will pay. That's why the price range is from 100$ to 500$. - Sending the mentioned Marketplaces lists, please send the screencap of the seller page together. So it could be proof that you're actual seller on those platforms. Note . (2) You should be able to guide me to sign up as a seller on mentioned marketplaces. Note . (3) You should be able to guide me how to list up products in each different marketplaces. Thank you. Please answer these Each notes before bidding. Or else the bid would be ignored.