What are your favorite SEO market research tools?

Hey Friends, What tools do you like to use for competitor insights?

Specifically, I'm looking to launch some new tactics to improve SEO and I have ~5 different choices, all of which I can fix examples of from competitors online. So, I want to get insights into how much traffic those pages are bringing o the site and I'm finding the traditional keyword approach with traditional keyword research tools isn't sufficient enough.

Any answer is appreciated :)