The image is actually emblematic of why you're having trouble finding good new music. You're still just looking at the outside of the haystack. In the modern era it's incredibly easy to access good new music, but perhaps more difficult to find that music (based upon your tastes). The prevalence of independent music exploded over 20 years ago. At this point, if you're relying on the vestiges of major labels and popular distribution channels as your tastemakers you're basically doing it wrong.
The drawback is that you may actually have to put in some time and effort to find new stuff you like, but it's definitely out there. Probably much more exists than you have time to consider, really. How much time you're willing to spend searching depends on how important it is to you to find new stuff that you enjoy. Use shortcuts and find a different tastemaker associated with genre's that you like if you want (e.g. online publications, youtube channels, online forums/communities, playlist where they exist, podcast, etc.) You'll have to put in some time to find the relevant ones to you, but perhaps not as much time as combing through new stuff on your own.
Lots of us with interests in genres with an extensive underground scene have been sifting through the mud to find gems for decades already, and I still enjoy the process a lot, though many people might think I waste a lot of time. These days that skillset is transferable and almost a requirement to find the good stuff in any and every genre. Unless you are lucky or don't mind enough that the most commercial stuff is still your jam.
(edit: unless of course this post is more a condemnation of broadly popular tastes in music. I'd have to type more to address that, but I'll save it. It's nothing new, and also hinges on subjectivity.)