​What would be the best way to do this ?

I’m curious about the best arbitrage strategy. Specifically, I’m thinking about platform-to-platform dropshipping. Imagine listing the same item on platform A and then on platform B, but with a markup. When a customer orders on platform B, you simply fulfil the order on platform A. The advantage is that this is essentially dropshipping, but you don’t have to worry about traffic since platform B already has built-in organic traffic, like Amazon.

So, what’s the best way to maximize profits with this strategy? What are the key parameters that would allow us to sell the highest-priced products and increase our overall profit?