With dropshipping the supplier handles the manufacture, fulfilment and shipping. You will find the customers. A great advantage with dropshipping is that you do not have to purchase the product in large quantities.
When researching your supplier, make sure you read the reviews and check that they are a legitimate and reputable business. Find out what the quality of the product is like. You can check this yourself by ordering a product that you can feel and touch.
Rather use a manufacturer, as opposed to a go-between, who would take a cut.
Dropshipping with countries that manufacture goods far away will increase your shipping fees and shipping times as well as potentially have more logistic problems (remember the Suez Channel container ship that ran aground and held up over 300 other container ships which caused world trade traffic delays for weeks in 2021).