Search and sign up for an account (it can be free), then select the products you like, set prices and start selling. It is not necessary to keep any stock and the merchant will send the products in your name. You can almost start your business immediately. I think the biggest challenge is directing traffic to your website. In other words, it's about marketing Y sales.
If you find the dropshipping business is complex. Then, join as affiliate That can be your alternative. You may not need to set up a website and create your own brand. It is about promoting the product or service of the merchants and earning a commission after completing a sale.