Bionik Mantis originally for PSVR clips on flawlessly.. : r/OculusQuest
Quest 2 Bionik Mantis Adapter by Schnippi | Download free STL model | Printables.com
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