I also like Derek Banas videos (https://www.youtube.com/channel/UCwRXb5dUK4cvsHbx-rGzSgw) for this same quality. He doesn't do many "deep dives" into the languages, but he does a fantastic job getting your feet wet with very common tasks... much like these learnxinyminutes pages do.

I use this website as the most effective cheatsheet ever. Forget about PDFs and all these things people put together. Pretty much every programming language is on LearnXinYMinutes and it is like a standardized cheatsheet across all languages. Brilliant, so brilliant!

I wish this could be extended to "Learn X in Y minutes coming from already knowing Z". However this (X,Z) matrix is hard to maintain...