1. thenewboston. Backend Development/frontend library tutorials
I really like this youtube channel because of how informative it is. His videos are a little bit long, but he covers a lot of information and such about complicated web interactions like web scraping, API's, and backend development.
2. Fireship. Front-end educational content.
This is one of my favorite youtubers because of how easy his content is to follow. He does so many videos on a wide variety of front-end topics, he gives me so many good ideas, and his videos are really enjoyable to watch!
3. Kevin Powell, tutorials front-end web development.
This youtuber is my goto for tutorials. He gives so many tutorials on every aspect of front-end developments, guides for projects, and front-end libraries. His videos are inspirational, educational, and they're very in-depth. He does a really good job of explaining the 'why' behind the code.
4. WebDevSimplified, in-depth tutorials.
I like this youtuber for his tutorials as well. He's a little bit more project oriented than Kevin Powell is, but he also has so many more beginner friendly projects and tutorials available. He does a good job of explaining the 'how' behind the code.
5. Tiff in Tech, back-end tutorials, tools and guides for web development.
I think this youtuber does a really good job of explaining a lot of the concepts behind back-end web development. She explains a lot of data storage and gathering techniques, she helps keep me up to date and aware of useful web development tools as well.