Keyword is the most important part to start anything on online. There have so many keywords in online. But this is most important to make challenge to each with others keywords.
Top keyword can be rank any site on first page. If that exactly match all the criteria for a niche site.
I can do to search any niche related top keywords which can be used any niche site to rank first page.
In my services I must follow all the criteria to search suitable keywords.
Service I provides: