lsuser had an interesting idea of creating a new Youtube account and explicitly training the recommendation system to recommend particular videos (in his case, music): https://www.lesswrong.com/posts/wQnJ4ZBEbwE9BwCa3/personal-experiment-one-year-without-junk-media
I guess you could also do it for Youtube channels which are informative & entertaining, e.g. CGP Grey and Veritasium. I believe studies have found that laughter tends to be rejuvenating, so optimizing for videos you think are funny is another idea.
lsuser had an interesting idea of creating a new Youtube account and explicitly training the recommendation system to recommend particular videos (in his case, music): https://www.lesswrong.com/posts/wQnJ4ZBEbwE9BwCa3/personal-experiment-one-year-without-junk-media
I guess you could also do it for Youtube channels which are informative & entertaining, e.g. CGP Grey and Veritasium. I believe studies have found that laughter tends to be rejuvenating, so optimizing for videos you think are funny is another idea.