Since I purchased Airoh commander helmet I have used to setup my GoPro top of the helmet as Airoh helmet has ready slot for cameras there and there are mounting systems included with helmet.
Anyway recently I was participating joint order of Chin mount from https://chinmounts.com/ I was bit sceptic how the camera stays with such a small mount. that is attached to helmet by 2-side tape.
But after I followed instructions and waited 24h before going out with it, it has stick there really well. It is also currently really easy to adjust to correct position so no need to worry that my camera is pointing too much down like it has been sometimes.
So this one I can recommend if you are ever thinking how to attach camera to helmet.
More comments and crash testing in video: