There are plenty of videos available on YouTube for learning Microsoft Azure. But I would suggest you go for the one that covers all the concepts in an organized way. For that, have a look at this free Azure training video offering by Intellipaat.
This video not only covers theoretical concepts but also some hands-on labs, quizzes, as well as about certifications. This video has covered everything right from basics to the advanced concepts so that you don’t have to look for anywhere else.