Another way to see if there is validity in your product or service that you want to market is to spy on Facebook ads.
Chris’ Empire Building Kit is a great example of an information product. As is Location Rebel Academy. Often they are higher priced, which means higher commissions They can have a personality behind them, which builds trust and makes them easier to sell There are often full marketing funnels behind them aiding in sales They solve a problem or provide a solution that your readers are looking for

Those would be the Authority Site System and Making Sense of Affiliate Marketing. Each of these programs are created by affiliate marketers who have many years of experience making profitable websites and continue to do so. No matter what changes are happening online. Going through one of these courses means getting a detailed blueprint, step by step plans of all the technical skills you need to learn, and will frankly save you hundreds or even thousands of hours of learning to get results.
The medium you choose to base your business on will very much depend on the kind of person you are and your personal preferences. You need to play to your strengths here. If you’re a writer, write. If you prefer video as a means to communicate with your audience, then that’s the way to start. A podcast is a great option if you’re a confident and engaging speaker but don’t like being on video.