i started a review site, let's say it is for golf clubs. my main kw is "golf club reviews". i have 10 articles on my site. each one is about a different golf club, let's say "golf club brandname A review", "golf club brandname B review" and so on. each article is seo optimized for my main kw "golf club review". but now i am wondering if that is the wrong strategy? should every article tackle a different kw? like "golf club test", "golf clubs", "golf club whatever", "golf club brandname A".... or is there an advantage to tackle my main kw with all ten articles? if it is not the best strategy, should i just change my articles up or write new ones for the other kw?