Many of the best-selling products in online marketing vary according to the market and consumer needs. But some popular products include: 1 social media advertising: social media advertising is one of the most commonly used methods in online marketing. It can be used to promote brands, products, services and other information. Search Engine Optionalization (SEO):SEO is a technique that improves the content and structure of a website to increase its ranking in search engines. 3. E-mail marketing: E-mail marketing is a way to promote brands, products, services, and other information by sending customized email marketing activities. 4. content marketing: content marketing is a way to attract and retain target audiences and increase brand loyalty by creating and sharing valuable content. As for which products had the greatest market potential, it depended on the market and consumer demand. Some potential products include: Smart home: With the increasing demand for smart and automated homes, the smart home market is promising. 2. Online education: The online education market is expanding because more and more students need access to online learning resources, courses, and training. Health and fitness: The health and fitness field has always been a hot area of online marketing because consumers are more and more concerned about their health and physical condition. 4. E-commerce: With the development of mobile Internet and e-commerce technology, the e-commerce market has become an important field of online marketing. It should be noted that online marketing is a dynamic process. Changes in the market and consumer demand may affect the choice and production of products. Therefore, companies should pay close attention to the changes in the market and consumer demand and adjust their marketing strategies and product mix in a timely manner.