Recommendations for gym/casual wear?

Hello, I have the first gen AirPods and they fit fantastic in my ear but after like 7 years they are starting to die on me.

I’ve done some research but all the “ sportier “ earbuds have that plastic piece that goes around the back of your ear and I’m not a fan of that, I’ve never had an issue of my AirPods falling out.

Any recommendations for a pair of earbuds that I can wear and the gym and aren’t so goofy looking that they can also be worn for casual use? Thanks!