Russell Stannard has created a number of excellent YouTube tutorials about how to use YouTube to improve foreign/second language teaching/learning. This page presents some of them, which somewhat overlap. (But what's wrong with review about good stuff?)
This tutorial, from 23 February 2022, presents a number of YouTube channels with the texts of English stories at different linguistic levels. Stannard demonstrates how to use some of the YouTube options (getting the scripts of the video, creating personal channels, etc.). He also briefly shows how to use text snippets from YouTube in Google Translate and Quizlet - procedures he goes into detail in some of his other tutorials (on this page).
Here's a Russell Stannard tutorial from September 2021 about 5 powerful tips for using YouTube. Some of them deal with using Quizlet.
Here's a Russell Stannard tutorial from January 2021 about 10 tips for using YouTube that teachers usually don't know.
Here's a brilliant 5 January 2021 tutorial about efficient searching using the YouTube search tool.
This is Russell Stannard's tutorial from 11 January 2021 about why YouTube playlists are good for TEFL. He also shows how to make and use playlists.