PS. The list is not in any specific order
FreeCodeCamp - FreeCodeCamp is a YouTube channel with about 4.5 Million Subscribers and 1200+ videos. They uploads all sorts of programming related tutorials from various creators.
Fireship - Fireship is a comparatively fast paces YouTube channel. Its great if you already know the basics. Because he doesn't waste time by going over obvious basic stuff. He also have a 100 seconds series which is awesome and a must checkout.
Web Dev Simplified - Kyle from WDS(Web Dev Simplified) grew on YouTube real fast thanks to the quality of contents. He uploads step by step tutorials of Web Development and React.
Kevin Powell - If CSS is your thing then Kevin is the guy you're looking for. He has the best tutorials when it comes to CSS.
The Net Ninja - Contents of Shaun are so good that people says they are better than most paid courses of Udemy and other platforms. He has lots of playlist covering Web Development step by step.
DesignCourse - Gary Simon not only creates coding related contents. He also teaches UI UX with great examples. He also does live UI UX reviews. So get your website reviewed ASAP.
The Coding Train - The Coding Train is probably the most unique channel in this list. His contents are like nothing else. So I won't spoil. But you gotta check him out.
Now by no means I am as good as these YouTubers but I am a small content creator who is learning something new everyday. And I will really appreciate it, if you check it out.