Not sure how widely know this is but the Bionik Mantis headphones for PSVR fit just fine on the Rift S! : r/oculus
Amazon.com: Bionik Mantis Attachable VR Headphones: Compatible with PlayStation VR, Adjustable Design, Connects Directly to PSVR, Hi-Fi Sound, Sleek Design, Easy Installation : Video Games
Bionik Mantis PS VR Headphone Review -- Comfort and Convenience
Mantis Pro
Bionik Mantis
Using The Bionik Mantis With The Oculus Quest 2 - YouTube
Amazon.com: Bionik Mantis Attachable VR Headphones: Compatible with PlayStation VR, Adjustable Design, Connects Directly to PSVR, Hi-Fi Sound, Sleek Design, Easy Installation : Video Games
Bionik Mantis and Elite Strap - no mods needed : r/OculusQuest
Bionik Mantis originally for PSVR clips on flawlessly.. : r/OculusQuest
Bionik Mantis PSVR Headphones fit Oculus Quest 2 BoboVR M2 Head Strap - YouTube
bionik BNK-9007 Mantis Detachable On-Ear Headphones for PlayStation VR - Walmart.com
Bionik Mantis
Bionik Over-Ear Pads Replacement for Mantis Headphones for Playstation VR NEW! 845620090266 | eBay
Bionik Mantis are a pretty solid fit with the BoboVR M2, not perfect but after trying 5 sets they are the best snap on option and you don't have to mod them