There's a lot of good resources out there and there's a lot of absolutely horrible sites.
This one I came across is a nice one IMHO:
learningseo.io
It's mostly links to articles and resources, but it does a pretty good job of cutting through the crud with the flowchart and other stuff
This one I came across is a nice one IMHO:
Learning SEO: A Roadmap to Learn SEO with Free Guides & Tools
Do you want to start learning or expanding your SEO learning process? I've created this SEO learning roadmap with free guides, resources and tools.
learningseo.io
It's mostly links to articles and resources, but it does a pretty good job of cutting through the crud with the flowchart and other stuff