I was trying to learn bankable React, but ended up learning much more. Udacity for the first Typescript and React courses, but they weren't made very well. I started (gasp) reading the documentation for many libraries and followed a few rabbit holes. A couple of months completing official tutorials I got lost and frustrated.

What put me over the top was a Frontend Masters subscription. By far the best value and flat monthly rate for all. Superior video courses for React/Typescript, but also advanced courses lower in the stack for Node, MongoDb, and an advanced javascript course. They have others I want to go back to, like web audio. I also took the dev interview and algorithm testing courses, which were super helpful.