Use google keyword planner

Ubersuggest e Semrush.

Profitable keywords can be selected using Google keyword planner. Google keyword planner is the best free tool for high quality keyword research.It shows the searches and bid for particular keyword.

Keyword planner is the best tool to search and select appropriate keywords for the website.

The tool helps to provide high quality keyword suggestions for your domain. Selecting the right keyword helps to rank your website higher in search engines.