You still have to do the work
Semrush SEO costs $139/month. Ahrefs Lite costs $129/month, both with monthly billing. They are good products. For teams and agencies doing research every day, buying tools makes sense.
A founder running one store needs the answer, not another research job. After buying software, you still have to learn it, choose searches, interpret the results and turn them into a plan. The tool bill does not buy that time back.