Our Lectric XPs weigh 60 lbs each, I take the batteries out which drops it to 50 Lbs.
We use the Swagman XC2 Hitch Rack:
https://www.amazon.com/gp/product/B0001VO1YY
It is not sold as anything but a hitch rack; no E-Bike endorsement, no RV endorsement. And actually not made for fat tire bikes. They want to sell you fat tire carries for more money. I just stretched the standard carriers with some brute force.
So far, so good.