What is what kind of online business is most profitable?

The most profitable online businesses are those that cater to a large market with high demand and low competition. Some of the most profitable online business niches include e-commerce (selling physical or digital products), online coaching or consulting services, software as a service (SaaS) companies, affiliate marketing, and dropshipping.

In general, businesses that are able to scale quickly and have recurring revenue streams tend to be the most profitable. Additionally, businesses that leverage technology to automate processes and reduce overhead costs can also be highly profitable.

Ultimately, the most profitable online business will depend on the individual's skills, interests, and resources. Conducting market research and identifying a niche with high demand and low competition is key to building a successful and profitable online business.