YouTube has a recommendation system already in place and it generally works for me except for music.
I don’t use it as my main source of music, but it’s convenient at some times like putting on music on my Apple TV while I work or if I am on my computer and don’t have my offline music library available. Or if I want to see the music video because I like the video that goes with the music. I used to use it to find new artists based on my existing taste, but whenever they broke the search/suggestions is when that all stopped for me and now I just use it for the same music or if I found a new artist and want to quickly check out their music.
There’s no reason for it to be this shitty. It seems intentional on their part. Maybe making money from paid spotlights under the guise of “recommendations”.