I use the catalyst waterproof ones. I recommend the ones that are one piece and hold the top shut because the AirPods case opens up because the magnet isn’t strong enough
1) V-MORO Genuine Leather Protective Cover
2) i-Blason Cosmo Series Case
3) Spigen
4) KINGXBAR Luxury Series AirPods Pro Case
5)elago AW5 Compatible with Airpods Pro Case