General vs Niche vs Brand (dropshipping)

What is the best route for someone who only has a few hundred bucks to invest in my company?

I was told general and niche stores don't really work anymore and you'd want to go for a single to 3 product brand store.

I'm a bit indecisive about this and am having trouble settling for some. As a skeptic, even my own research feels off. I see some niche stores like articture do very well.

Obviously goes without saying, I'm very much a beginner here, a little insight from peers seems to be a good second starting place.

Edit: Also are things like spocket and doba worth while?