Can't recommend Fun Fun Function enough - awesome sense of humor and super informative. If you want to level up, you'll be a better developer watching one of these every week.
I have my own channel on YouTube for programming videos but I have to give credit to MPJ for being the excellent inspiration for me to start posting.
His videos are both informative and entertaining.
He often focuses on some pretty esoteric topics. In one video, he prototyped a simple 3d rendered in QBasic. I'm not sure if you pick up best practices from Bisqwit, but you'll probably learn some interesting programming techniques.
- CodingTrain (https://www.youtube.com/channel/UCvjgXvBlbQiydffZU7m1_aw) for JS is good. You know how you sometimes come across a video of a teacher, and go "man, I wish I had teachers like this when I was in school"? Well, this guy is like that - really enthusiastic and great to watch.
I like "The Coding Train" a lot. Very entertaining, the guy is fun. It might look not serious enough for some people but I personally learn a lot of things watching his videos.
TheHappieCat. She talks about various computer science topics, usually with a focus on games. She also occasionally does tutorials for engines/languages.
Traversy Media is an awesome resource for beginners and seasoned developers alike! Brad curates succinct tutorials all while humbly delivering the content in a way that makes it feel like you're pair programming with a buddy!
It could depend on which programming language one is using. For eg: I use python and I love sentdex. But it could be different depending upon your language of choice.
I have a programming channel of my own where I do live programming streams: https://www.youtube.com/user/KingHerring
I haven't seen anyone else do this. Check it out if you're into that sort of thing; I also plan on doing more tutorials when I have the time.
There's a lot of other good YouTubers I list on the channel's suggested channels sidebar.
James Long (jlongster) does this from time to time. I haven't watched any of his videos yet but I find it hard to believe that they wouldn't be interesting considering his talks/articles etc.
Coding Tech takes programming related talks from all types of conferences and aggregates them into their one channel. Always interesting and always high level.
Siraj gives you the quick and dirty on how complex problems are solved with code. Not really tutorials, but more of a "how to" you can use to start your research.
https://www.youtube.com/channel/UCO1cgjhGzsSYb1rsB4bFe4Q