Zerocho's lectures are good for learning by following along at first. There are also challenges that allow you to think a little further on your own or develop your skills, so it's hard to forget what you've learned. Since he emphasizes the importance of official documentation, it's fun to learn because you can look up official documentation yourself during your studies and understand how functions work or their internal workings. Zerocho's React lectures are also good lectures. Despite being free, the quality is very good. I think it's a lecture that teaches you the basics to delve deeper into React.