Hi
I tell you my case
I am an eBay seller and I live in Peru, for a long time I sold products from China to the US and other countries, but this year I could no longer sell Chinese products to the US, so I was changing everything and decided to sell products from China to other countries through my online store and what it is to sell for the US through ebay with products from US suppliers (I am just testing these changes) and I started selling from a supplier (although until now I have noticed that there are suppliers of The US that have higher prices than Waltmar which makes it difficult to compete with prices) but even so this month I managed to sell something, apparently in the US the purchase orientation is changing and they prefer to buy what is in the US itself, perhaps it is due to the issue of Delivery time.
Returning to the topic of your question, there are suppliers that do not require as a requirement to have a tax identification or reseller license, which makes it possible to be part of their dropshipper program.
Although I am interested in knowing how to have a tax identification in the US, a bank account in the US and the license without being a US resident, I will put the latter in the forum as a new topic and maybe a member can help with the answer.
Cheers