My routine with audiobooks:

Cardio: stationary bike, jumping rope, stair climbing. Body weight: some for abs some for lower back. I learned and picked a few from the youtube channel Athlean X. I personally feel we need those exercises to combat the long hours we sit everyday. And stretching! It was so boring before audiobooks I never stretch, now I stretch before and after.

Feel free to experiment to find your own optimal routine, since we have different schedules and access to equipments. I guess the idea is with audiobooks experimenting can be fun too. Even cleaning the house is fun now with audiobooks :D