Learning How to Niche Market doesn’t have to be difficult at all. Find a market that’s not saturated (meaning many companies and individuals are involved with the particular industry or sector.); then dominate that particular market because your competitors are in a much smaller pond.
Create a Udemy Course regarding that subject and sell it to the general public for a reasonable price. You can use your Blog or Website and Youtube to promote your particular niche.
My personal experience with Udemy has not yielded the $1000’s of Dollars a month profit as others have claimed. Although, I can see how the courses can provide additional passive income.