I can't speak for how viable it is for success or whether it's just a grift (as I haven't had the time to really research into it) but feels like as good a time as any to mention that, out in Australia, The Pack Music Cooperative is fundraising for a cooperative music streaming service: https://www.thepackaustralia.com.au/
They haven't raised a lot towards their goal, yet, and could probably use an the help they can get. As a cooperative, they'll side step a lot of the probably problems a corporation like Spotify or Tidal will have and they already are dedicated to prioritizing artists and their rights.