I'm guessing maybe minor retailers? Some small store close to your house/school/office when you can't be bothered to wait for shipping.

I would not dare to try and open some small store and gamble on people not wanting to wait for Amazon. If you think that's still something that can be done, try it.

Better still, get a business loan to launch something like that. I'll wait. It's hard to even think of a thing more self-evidently doomed.

The last sentence is just not true. More doomed would be to invest a lot in infrastructure and economies of scale and try to beat Amazon at their own game.

So don't do that, open a small convenience store instead. Where else are all those retail jobs coming from? Not a rhetorical question, I really don't know.