Hi John, I use a receiver type rack on the tow vehicle.
I chose to stay away from the receiver on the trailer because I feel they sit too low and bounce too much on the rear of a trailer. besides that, they also require a lot of extra steel to mount the receiver tube securely.
The rack I built is anchored to the frame just ahead of the bumper so the bumper is carrying no weight
and 80% of my rack and mountings are aluminum. This made a major difference in reducing the amount of weight
that was added to the rear of the trailer. No welding was required and I can remove the whole thing in less than 2 minutes by pulling only 2 bolts and unplugging the hi mount lights