GOOGLE TRENDS

Understanding your product's trend is a good start, but it's also important to know how many people are currently searching for your product idea each month. Use Google Trends as a place to start learning about trending searches.

Link - https://trends.google.com/trends/

Here is a link to the Google Trends Help pages - https://support.google.com/trends/?hl=en#topic=6248052

And here is a link to a helpful article on how to use Google Trends for SEO - https://searchenginewatch.com/sew/how-to/2292198/how-to-use-google-trends-for-seo

I hope you find this helpful!