Ego is the enemy by Ryan holiday if you want a modern stoic. Meditations by Marcus Aurelius if you want the original.
Discussion
Marcus Aurelius is one of my fav. Weird title since Ego (I) is my friend. Ok, I'm giving Holyday another go. Maybe I've missed this one, it doesn't ring any bell now.
I think the audiobook is on YouTube. I came across it years ago so it might be gone by now but worth checking. It’s not a heavy read so the audiobook should be fine.