I use youtube downloader and save the videos I want. This is usually a fitness workout video. For me, this is a great opportunity to keep fit even during lockdown. Downloaded videos are of good quality.
Some youtube channels get crazy views and subscribers just by saving and re-uploading videos they like and save. Of course, in some cases, you can't run the ads on such videos but it's easy to get the real audience by doing so. And with this free keyword tool for youtube , you'll gain popularity in no time