You are not going to find one single resource that explains all the things in this picture. It's showing you many competing technologies that fill different conceptual areas.
For example, if you wanted to know more about Infrastructure-as-Code, you would want to learn more about Terraform & OpenTofu, Pulumi, and Crossplane. You'll have to decide for yourself which makes the most sense for your use-case. People here can help you, and I'm sure are willing to share their experiences with different products, but no one is going to be able to summarize this whole page. It's a tapestry of threads, and you need to pull on some of them.