Filter bubbles are one of the bad side effects of social medias. You see a youtube videos and you enter the rabbit hole: a world of youtube videos sharing the same "ideology" and creating a world totally different to what other people close to you see. You can't agree on anything since you are part of two bubbles - different storytellings of the world - and none of you sees anything else than that bubble.
In the meanwhile, YT says they're not responsible of published content such as a newspaper is, since they leave users free to publish. I agree with this position but while they don't moderate, they do suggest content. I'd say that if you're suggesting what to see next, you're responsible of that suggestion.
So I'd say, what if YT (and al the others) could only suggest videos ranking next from the search which you performed and/or from the same youtube channel? Within a same channel, the publisher is responsible.
This way they keep you in the path you were, without targeting you with catchy videos to keep you engaged