best Keyword Research Tool (Explained):

What is a keyword research tool?

It is a nice, simple tool, and the best alternative to Google Keyword Planner and other paid keyword research tools.

Why?
It's simple and 100% free.
High degree of accuracy

Keyword Research is a free online keyword research tool that uses Google's autocomplete feature to create a list of relevant keywords for any given phrase or topic.
The search terms that Google AutoComplete suggests are determined based on many different factors. One of them is the number of times users searched for a particular topic in the past. This helps you get the best keywords people are searching for.
It will then show you search volume and CPC data, to help you choose the best keywords to rank and get more organic traffic from search engines.

Keyword suggestions

Need more keyword ideas? From individual terms to long tail keywords, you'll get loads of keyword suggestions with superlative keyword search. You'll also see the estimated monthly search volume, paid competition, and cost-per-click (CPC) for each keyword. And to make things a little easier, we're creating a keyword list for you based on what works for your competitors and based on what people are writing on Google.

May help KEYWORDS SUGGESTION TOOL with more ideas

What does a keyword research tool do?
Keyword research tool helps you understand what people are searching on the Internet. It displays the different keywords that are searched in different search engines in different countries around the world and gives you search volume and paid competition data, so you can select the best keywords to rank and get more organic traffic.