I just want to know free keyword planning tools other than google's keyword planner, sem rush etc for more better research

keywordtool.io is the good keyword planner tool.

There are many but Google Adwords Keyword Planner Tool is best for me

 

You can use other tools like

 

Long Tail Pro

Keywordtool.io

Semrush (Paid)

Ahref (Paid)

KWFinder

Some of the free keyword planner tools, other than google's are given below.

1. IMforSMB Bulk Keyword Generator
2. Keyword In
3. Soovle
4. Ubersuggest
5. Wordtracker Scout
6. WordStream Free Keyword Tool
7. SEO Chat Suggestion Keyword Finder

I personally like Google Keyword Planner Tool, that is best and free.

Neil Patels new tool Ubersuggest is good and free. SEMrush is better for more in depth data.

SEM rush is sadly paid tool, Go for keywordtool.io

54 minutes ago, Amitkumar said:

You can use google keyword planner

If you plan to use adwords. Because that's what this tool is for.

There is no any free tool which will give you in-depth information. You have spend some bucks to get the best keywords and in-depth information.