Found lost AirPods, what do I do?

Earlier this week I took a flight from Spain to Germany. It was the first flight of the day so I have no idea where the plane came from the day before.

As I was storing my backpack in the overhead compartment I saw something at the back… you guessed it, an AirPods case. I grabbed it thinking they’d be fake but they’re actually legit AirPods Pro 1. They’re a bit damaged and beaten and dirty (clean your ears folks!) but they work without issues.

So now my question is: What do I do? Is there any way to find the owner and return them? Last time I found a lost iPhone I was able to access it and contact the owner but obviously that’s not an option here.

My other option is trying to sell them, as well as sell my own AirPods Pro 1, and get the new gen 3 bc I was already thinking of upgrading.

What would you guys do?