I have started a course named Road to React. I can honestly say that this material is really well assembled and presented. I completed the course today on educative.io Class, and have learned a lot in regards to React with local state & ES6.
The course walks you through building an application which queries Hacker news’s public API, and renders the results on a table. A live demo of the project I worked through is viewable at the following link: https://laszlo-lazuer.github.io/road-to-react/