Using Market Samurai For Finding Keywords

I would like to throw a question out here about using Market Samurai for finding a keyword niche for a blog I am going to monetize with amazon. Obviously a low SEOTCR percentage is good but I am wondering what percentage range people have had good luck with. I am looking at 5 or so keywords with an SEOTCR percentage between 2.12% and 0.37%. Has anybody had any luck with percentages that are much higher than that?


thanks for the help,

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