Apple and Spotify can now play podcasts on your Alexa-enabled devices - The Verge https://www.theverge.com/2019/12/13/21020492/apple-spotify-alexa-podcasts-amazon-echo-homepod-siri

"Starting today, Apple Podcasts is available through Amazon Alexa-enabled devices like Echo speakers. People just have to say, “Alexa, play (insert show name here) on Apple Podcasts” to get a program."