Maybe something like this will suffice? It’s not a ear bud blocking all sound rather it sits above your ear so you can still hear everything else around you. My wife picked up a set and seems to like them since it doesn’t block you out from the rest of the world while riding.
AfterShokz Trekz Titanium Open Ear Wireless Bone Conduction Headphones, Slate Grey, (AS600SG)
https://www.amazon.com/dp/B018XNGQOE..._6tE5Cb0494Y9N