Updating your artist pic & bio is done through Spotify for Artists. Get instant access to Spotify for Artists.
You can edit your artist image directly via Apple Music for Artists. If you're not already registered, sign up for Apple Music for Artists through Apple directly: https://artists.apple.com. When asked for contact info, you can use your own.
To manage your profile on YouTube Music, claim your Official Artist Channel through DistroKid by following these steps.
To update your profile on Amazon, claim your artist name on Amazon Music for Artists by following these steps.
Get verified and update your profile on Musixmatch by following these steps.
Pandora offers a similar service which you can sign up for via https://amp.pandora.com/
To update your profile on Tidal, submit a request through our Tidal Profile Update form.
More detailed information here.
To update your profile on Napster, submit a request through our Napster Profile Update form.
See your Shazam statistics in Apple Music for Artists!
You may need to reach out to stores individually or check their FAQ. There's a company called AllMusic Guide that manages a database of music releases. They provide bio and review information to stores including iTunes, Spotify, and other outlets. So try them.
Hope this is helpful!