1. Keywords Everywhere – https://keywordseverywhere.com/
2. KWFinder – https://kwfinder.com/
3. SEMRush – https://semrush.com/
4. LSI Graph – http://lsigraph.com/
5. Keyword IO – https://www.keyword.io/
16+ examples of Amazon Affiliate Sites (with 15,000 keywords): https://nichesiteproject.com/amazon-affiliate-sites-examples/
About Niche Site Project: http://nichesiteproject.com/about/
DOUG CUNNINGTON, PMP writes about SEO, productivity, project management, and niche sites. His work has been featured all over the web, including Ahrefs, Empire Flippers, Niche Pursuits, Side Hustle Nation and more.
I am an internet marketer and a Project Management Professional (PMP, certified in 2008 by the Project Management Institute).