Best Online React Video Tutorials (2018)
From FreeCodeCamp an hour-long introduction to React and its major concepts.
Scott Tolinski of LevelUp Tutorials has a friendly way of explaining even the trickiest React concepts. There are additional courses on Redux, React Testing, and Intermediate React that are also worth exploring.
Frontend Masters has solid content and this course by Brian Holt is a detailed look at React via building a Petfinder web app. He also has an Intermediate React course that covers testing and more advanced React concepts.
From popular teacher Stephen Grinder, an up-to-date course on the fundamentals of React, React Router, and Redux. Highly recommended.
Also from Stephen Grinder, an advanced course on React concepts including authentication, testing, middlewares, HOCs, and deployment. A good follow-up course to Modern React with Redux.
My favorite guide to Redux this is the screencasts version of the book.