"Buying products" is obsolete
You find the products on Walmart, Amazon, Target (especially those on sale)
Then you list them on eBay.
When the order comes in, you order the product from Amazon or whatever
and have it delivered as a "gift" to the customer.
It works good with Amazon if you are a member of Prime (free shipping)
Everything is great unless they claim theft, charge back, try to rip you, etc
Personally I think it is better to build a Brand, make it into a Niche related Affiliate and Print on Demand site
Print an AI created book (or get a Fiverr author to do it for $50), post it on Amazon and become an Authority
Build a Buddypress Community around the Niche. Promote it on the socials and build up sales and then either
sell it on Flippa or keep running it and create the next one. I think building a property is more important than
playing click games.
Sincerely,
The Eye