FWIW, some of my commute vids
On some I've varied the camera mount, but I pretty much stick with the helmet cam now. Lowering tire pressure can help with vibration. For some of the more creative stuff I used a broom handle or telescoping bar to place the camera away from the bike and include me in the shots. I then velcro'd the bar to the bike in various locations, or stuck the bar in my back pack..
Have fun experimenting.