Product management levels

This is fantastic: https://posthog.com/handbook/people/compensation

This post is a good introduction to PM ladders, and how they vary across companies: https://www.productleaders.blog/blog/product-manager-career-paths

This is also pretty good: https://runthebusiness.substack.com/p/the-pm-career-ladder-your-unofficial

Lenny Rachitsky is probably the most followed product leader in the world. He has a post on career ladders, but it is paid only. Has apparently 20 large companies and the traits each select for here: https://www.lennysnewsletter.com/p/product-management-career-ladders