I got this one: HOPKINS SMART HITCH . So far it's worked very well. The only problem was that the cable from the camera to the monitor was a little short for my Dodge quad cab long bed. I called them and they sent me a 5' extension cable for free. It mounts to the license plate bracket. It would be better mounted higher but I sometimes have my tailgate off when I have a stock rack on the pickup so there's no other place to mount it.
βIn a time of deceit telling the truth is a revolutionary act.β β George Orwell
It's not over when you lose. It's over when you quit.