Do you really need tools for keyword research?

Do you really need tools for keyword research? How does it help in SEO?

Yes !!!!!!!!
you can use keyword planner for keyword research

Yes you can use for keyword research planner

use keyword planner for this

Yes it is better to use tools for keyword research

Yes, tool helps to find out the traffic based keyword.

yes. it helps too much.

Yes. It helps for better keywords.

Why look for more tools when you have Google Keyword Planner?