You're Wrong About did a really nice piece on her just in April, going over the history, the controversy that got her cancelled before "cancelling" was even a thing everyone talked about (because she protested the Catholic Church's sex abuse in Ireland before the Spotlight stories were even a thing), and just generally her life story: https://yourewrongabout.buzzsprout.com/1112270/12624780-sinead-o-connor-with-allyson-mccabe
Worth a listen if you like that kind of thing. She was an amazing person that got repeatedly done dirty by the industry and cultural zeitgeist and this death is a tragedy.