Like everyone I constantly search for optimum niche markets.
One way to tell what is ht and what is not is to go to clickbank.com an in the affiliate marketplace perform a search. But do a "advanced" search. n
The only parameter you need change is "gravity" which basically renders results based on how many people are promoting the particular product.
Plug in gravity gravity greater than 80.
What do you see? The big niche markets of health, wealth or relationships.
But there is a hidden gem. A product that teaches manifestation mind hacks. In fact there are a fw products in this niche market.
Overnight Millionaire mind system
Manifestation Magic Manifestation Code. Etc. etc. etc.
A long time ago a gentleman made a fortune with abook entitled "Solve All Your Money Problems Forever"
It was a book mind hacks - mysterious training that changes a persons mind and expectations.
To go from point A to point B takes change.
The main thing that needs to change is the mind, thoughts, images, expectations.
I hope this gave you a million dollar idea.