We also left out special element analysis and contextual advertising. With this information, you may make CTR corrections based on their availability, allowing you to generate more accurate traffic estimations.
Another possibility is parsing snippets. You can analyze snippets of sites in the top 10 and take additional information from there for optimizing pages. For example, all your competitors offer free shipping directly in the snippet, but you don’t, and because of that you lose competitive advantage.
You can add all this information to a report in Data Studio, and it’ll turn into a comprehensive top analytics system. Such a thing is always convenient to keep on hand. Start by collecting data and further improve it as needed.