I will list several types of business opportunities – some are in affiliate marketing, where you get paid a commission for each person who purchases a product through your link.
Some are in network marketing, where you get paid according to a compensation structure, which may be more complex but involves residual income based on the size of the team or number of people underneath you in the structure. In this type of program you can be paid when someone you recruited makes a sale so you are able to increase your income potentially much more by leveraging the results of good team members.
I also will distinguish between the types of products – in both categories of affiliate or network marketing you have digital and physical products. Physical ones would include health products, skincare, even books or electronic devices. Digital products are mainly websites, courses and trainings. Many companies have both types.