I use a combination of tools. GSC with a combination of aHrefs and also GA.
GSC will give you the most accurate data in regards to your keyword and page rankings. aHrefs helps understand a bit more about the page and other potential keywords, so I use it as more of a tool for future updates to an existing article and competition. And then with GA, I can see how users are interacting with my content that are driven from organic results.