What are Common used tools in SEO?
Common tools of SEO: Google analytics, Google webmaster tool, Bing webmaster tool, Google adwords keywords planner tool.
Google search console & google analytics are common used tools.
Google's Webmaster Tools
HubSpot's Website Grader
Check My Link
Moz's Pro Tools
UpCity's SEO Report Card
Screaming Frog's SEO Spider
Found's SEO Audit Tool
Varvy's SEO Overview Tool
In a more detailed way https://blog.hubspot.com/marketing/seo-analysis-tools
Google Analytics and Google Search Console both are common tool.
Google Analytics, Google Search Console, and Google AdWord are commonly used tools.
There is a lot, but Google Search Console and Google Analytics are the common ones. I can also recommend some free tools like Screaming Frog SEO Spider or Yandex Metrica, both really helpful.