Below is a link to an excellent article about how you can waste a lot of money by choosing the wrong keywords to use in your PPC campaigns.
The article is just focused on PPC, however these "keyword tools" referenced in the article are also very useful for SEO. Furthermore your PPC testing can be used to focus and tune your SEO and improve the quality of your business lead generation system.
Google has illegally broken into my Blogs over 100 times. Google has edited and illegally deleted some of my content. Additionally, X, Meta, and Google are still censoring many people, including me. Elon Musk never fixed any of the evil censorship that Jack Dorsey and his team built into the X software. We do not have online freedom of speech.