there’s a few threads relevant to this topic you may want to check out
In my personal opinion/experience I much prefer spotify for finding new music despite being worse quality wise. The mixing and recommendation algorithm just seems to work a lot better than the other services. Of course it’s not perfect and probably never will be given you can’t specify what it is about the song you like particularly but for sure i think the daily and weekly mixes are the best i’ve seen from automated lists based on your listening preferences.