AudioAnchor - Audio player that tracks the listening process of your audio books and podcasts
Kobo Audiobooks - Experience the joy of being told a story
Smart AudioBook Player - Smart AudioBook Player app comes up with features to help you in casting all your audiobooks to Chromecast enabled devices so you can enjoy them with your friends and family members.
Scribd Audiobooks - Unlimited access to 30,000 audiobooks
Cozy by Julian Geywitz - Cozy is a modern audiobook player for Linux and macOS.
Prologue - Audiobook player on iOS for Audiobooks hosted on a Plex media server