I want to start a drop shipping business with a well known online shop, how can I make people choose buying from me over that shop?

Dropshipping is a delivery option where the vendor delivers the goods to your doorstep if you are using a3rd Party platform , if you do not want to use the platform then you can do that via FB Page Retail .

Drop shipping is a fulfillment model that allows you to buy products individually from a wholesaler and ship them directly to your customer.

Instead of purchasing a large amount of inventory, you simply partner with a drop shipping supplier and list their merchandise for sale. Then, once you receive an order you forward it to the supplier for fulfillment. The supplier will ship the product directly from their warehouse to your customer, and charge you only for the price of the shipped item.