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 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.