I wear one earbud so I can still hear cars with the other ear.
These ones are decently reviewed and quite cheap. My wife uses them.
https://www.amazon.com/Soundcore-Aut.../dp/B0B1LVC5VZ
I use a pair of quite expensive Sony earbuds and do not recommend them. Poor value, and they also had some battery life problems which resulted in a mass recall by Sony. Terrible quality control.
I use the cheap ones for road riding. Just one so I have a spare when I lose one.