What are the best programming language tutorials?

If u need the very best, then go checkout https://vuejs.org. Its not a language, but a framework. It just can't get any better than that. Every tutorial must be written by taking an inspiration from VueJS docs.

I'd have to go with the drRacket one on this: http://docs.racket-lang.org/quick/index.html

I really like it if I can mess around with visual stuff quite soon when learning a new language.

freecodecamp, for web development

K&R

Laracasts.