It is important to know what types of business models are out there so that you can make the best decisions for your future business. You have to know what type of business you want to create. Do you want to sell products or services? What types of products or services do you want to sell? These are important questions that need to be answered before starting your business.
Business to business (B2B): Businesses selling good and services to each other.
Example: software, raw materials
Business to consumer (B2C): Businesses selling good or services to the customer
Consumer to consumer (C2C): Consumers selling goods or services to other consumers.
Example: eBay, Poshmark, Mercari, Etsy
Consumer to business (C2B): Consumers selling their goods or services to a business
Example: photographers, freelance writers
Service based business:
Customers purchase the skills of another person or business.
Examples: Personal Trainer, Graphic Designer
These will be online courses or coaching programs you can sell to consumers involving things you are knowledgeable about.
For example, if you are knowledgable about Adobe photoshop you can sell a course to someone who is interested in learning about Adobe photoshop.