You can get an affiliate link and earn money by joining an affiliate program related to your niche. It does not matter if you want to sell digital products or physical product. You need to choose a program that matches your niche. Popular platforms like Amazon Associates or ClickBank offer a wide range of products. After signing up, you will receive a unique affiliate link. You need to share this link on platforms like blogs, social media, or email. Every time someone uses your link to make a purchase, you earn a commission. You can use paid ads to drive traffic to your link. Tracking tools help you monitor your clicks and sales. Consistent promotion increases your earnings.