We regularly use and can recommend these sites for either increasing your fanbase or making a little extra money. Please note that many of these are referral links so whilst they won't cost you anything they will help to maintain this free service.
SwiftDemand - trying to provide the world with a Universal Basic Income.
Steemit.com - Initially a blogging platform that pays you in cryptocurrency and now includes a music service similar to SoundCloud. There is also a vibrant and very supportive community of independent musicians and regular competitions for musicians to enter.
Whaleshares - A new clone of Steemit but with some modifications to make it much more about the community and less about earning crypto. New users get awesome support!
Musicoin - Get paid for EVERY stream of your music.