I have the Saris SuperClamp 4 platform bike rack for 2" hitch. You have to purchase the fat tire trays (for any size 5" or smaller). The inside clamps can do 60lbs per bike or 120lbs total and the outer clamps are limited to 35lbs each or 70lbs total (max weight of 190lbs for 4 bikes). I removed the two outer trays since I'm only transporting 2 fat tire bikes 90% of the time (easier to load without the outer platform).
The only downside is the rack clamps down on top of the front and rear tires. May not be secure enough if you have full fenders.
1UP rack are very popular and I've seen folks use motorcycle platform rack also for fat tire ebikes because they are 1/2 cost and 2X-3X the capacity compared to bike only racks.