Right, Discover has been my main vehicle for finding music for years. Spotify definitely does have a great algo for suggestions.
Reaction videos is actually a good call. I found Hi Ren last week that way, and while it isn’t really a casual listener, per se, I did think it was really compelling. My issue with the react videos generally is they feel ‘acted’ a lot of the time because YouTube loves to rabbit hole people into those. Good way to make a buck at the moment