Adventures in Audiobooks: "To Hear the Lamentations of the Women" (playlist link)
(youtube.com)https://youtube.com/playlist?list=PLYtMmtDVbBZVqUxSU9ml1nBETpenxW4WgOf the handful I have listened to so far I recommend The Phoenix and the Sword and The Tower of the Elephant. The Phoenix and the Sword is basically the first Conan story and tells of King Conan facing an attempted overthrow.
All of them are pretty short, being basically short stories.