I can confirm the ARRI Universal Quick Release HD Base-plate for 15mm rods, (product number 338353) is compatible with most video cameras
Also known as the DigiCine quick release base-plate, it includes a bridge plate sled and a sliding plate.
We checked the alignment on several Sony cameras and found the center line and height to be easy to match.
We checked on the Panasonic HDX900 and found that there are enough adjustments available for a proper hight and centering as well