How many Keyword Research Tools are available?

How many Keyword Research Tools are available?

SEMrush
Google Planner
Moz
Keyword Tool
SPyFu

WordStream’s Keyword Tool
SEMrush
Google Keyword Planner

Plenty of tools are available for the Keyword research if you want to know more about Keyword tools you can simply Google it and there you will get the huge list of Keyword Research tools and also the way how to use them.

SEMrush and Google Planner is the best tool to research keywords.