Keyword is the main factor of seo.Keyword researching is the most important thing if you want to rank on google.Google reads your keywords not your post value.You wrote a good article but google will not rank you if you didnt use particular keywords.

Some free keyword resarching sites

1.https://backlinko.com/keyword-research2.https://keywordtool.io3.https://moz.com4.https://adwords.google.com/intl/en_bd/home/tools/keyword-planner/
5.https://serps.com/tools/keyword-research
6.https://ahrefs.com/blog/keyword-research/
7.https://www.wordstream.com/keyword-research
8.https://yoast.com › SEO blog › Content SEO
9.https://www.orbitmedia.com/blog/how-to-research-keywords-tips
10.www.ranktank.org/keyword/research‎


Watch my this video it will show you and make you understand everything about keyword researching.




Among those tools Google Keyword Planner is one of the best free tool.Try it You will Also admit it that google keyword tool is the best tool ever,

BEST free Online Tools that will help you for Researching Keywords - Rank Higer by understaning SEO