BestBuy or MicroCenter. NewEgg is good too, but it's pretty much like Amazon in the sense it's a marketplace for other stores.

The big issue is that there aren't a bunch of independent e-retailers to choose from. If you want to make it, you gotta make stores on Amazon, eBay, NewEgg, Etsy and Reverb (not all of course; depends on your products). I wrote an article about this recently:

https://battlepenguin.com/tech/the-death-of-the-mom-and-pop-...