SEMRush is one of the best keyword research tools. If you are performing a competitor research, SEMRush can help you to find out the ways to beat the competitors. It will tell you the low & medium competition keywords. You can perform backlink analysis through SEMRush.
You can use those keywords to drive traffic to your affiliate website or business websites. We found SEMRush at the 1st choice among other keyword research tools. This tool make your keyword research to the next level.
Ahrefs is the best keyword research tool for the bloggers, digital marketer or affiliate marketer. Ahrefs comes with a lot of handy tools which can help you to research profitable keywords for your money site.
Ahrefs Keyword Explorer tool is most popular keyword research tool out there. We highly recommend this, if you really want to find keywords which can make your earn thousands of bucks per month.