There are three really good keyword research tools that are free to use which are:
Keyword Spy which allows you to quite literally “spy” on keywords. It’s a great name.
Keyword Eye which defaults to Google UK since it’s developed by a UK team, so if you’re using it in the US, you’ll have to change it to Google US. The nice thing is that it also has some options for several other countries and returns results in language.
The free version does limit you to 100 keywords, so while it’s useful for high level ideas, it’s not a keyword research substitute.
SEMRush This tool is also a paid tool with a free option, but unlike other free options, I think this tool provides just enough data in its free application to be useful.
To Your Success