For a long time I worked in one of the biggest and most highly respected SEO agencies in the world. I was very very good at it, without sounding like a dick hopefully I want to convey that I do know what I am talking about. The biggest problem you are going to face is ultimately so many different people out there are going to give you conflicting advice and most of it is just plain horrible.
There is a single book that I would recommend on the topic as pretty much the gold standard, if you read and absorbed absolutely nothing else on the topic besides it I would confidently put you in the top 20% of experts globally on the topic.
Spend the $40 get this book https://www.amazon.com/Art-SEO-Mastering-Search-Optimization... and be done with it. The entire topic is much less complicated than it is made out to be and if you have decent technical chops then you are already at a huge advantage over others.
There is a single book that I would recommend on the topic as pretty much the gold standard, if you read and absorbed absolutely nothing else on the topic besides it I would confidently put you in the top 20% of experts globally on the topic.
Spend the $40 get this book https://www.amazon.com/Art-SEO-Mastering-Search-Optimization... and be done with it. The entire topic is much less complicated than it is made out to be and if you have decent technical chops then you are already at a huge advantage over others.