The broad categories and sub-niches of such categories which I have included below do not guarantee an easy success path for the affiliate in question. The chances of your product being sought after will increase while at the same time competition for promotion of more heavily trafficked products will also increase. As with any promotional operation, the methods, platforms, language, and ethics which you employ to promote a product will more than likely be the most substantial variable when it comes to your success.
This list is only a snippet of the magnitiude of promotional opportunities which exist online. If you ever have trouble choosing a broad category or niche of products to promote, read up on the world around you. Explore and learn about current economical, social, or technological trends.
1) Health and Fitness - Diets
Products pertaining to health, fitness, diet, and wellbeing are arguably the most trafficked and sought after products and services on the internet. Primarily due a combination of an increasingly more casually health conscience world, along with already long established interest from athletes, bodybuilders, and gurus. Diets are an especially trafficked niche as virtually anyone who is dedicated to a healthy or athletic lifestyle will require or employ diets as a complement to their existing lifestyle routines. Another advantage of the diets niche is how multiple diet fads and trends can appear annually, opening up promotional opportunities on a wide scale.
2) Jobs and Employment - Online Employment
This is an easy one, due to an increasingly remote and online world, opportunities to work remotely, for oneself, or without physical boundaries is one of the top economic trends in the modern world.
3) Betting Systems - Lottery
Many products pertaining to gambling can be unstable, albeit it cannot conceal the fact that products and services which provide tips, opportunities, or statistics in lottery are routinely sought after.
4) Business - Stocks and Investing
This is another niche which is currently being amplified by the ever increasingly remote world where virtually anyone can begin investing online through simple apps and tools.