Headphones from Tonies with an on-ear design that makes them rest nicely on your ears. These could work equally well for music and podcasts.
From OnBuy
tonies Wired Headphones for Toniebox, Kid-Safe Volume-Limiting Cushioned Over Ear Headphones for Listening to Audiobooks, 1.2m Cable and 3.5mm
For Your Little One
Tonies Headphones - Light Blue