Amazon Music and Audible
https://podcasters.amazon.com/
Step 1. Go to Podcasters.Amazon.com and click “Get Started.”
Step 2. Connect your Amazon Account. If you don’t have one, you’ll create one to move to the next step.
Step 3. Add Your Podcast’s RSS Feed. select your country, and click “Submit.”
Step 4. Next, confirm that it’s your podcast and cover art that’s being shown. Agree to the terms of service, and click the prompt to “Confirm Email.”
After you have confirmed ownership, your podcast should appear on Amazon Music and Audible within 24 hours.