First, you will have to either use a frame mounted hitch or reinforce the mountings of your bumper. The bumper isn't made to really support a bike rack or anything other than sewer pipe and maybe the spare tire. It is thin metal and flexes. There are support brackets you can order to help there and raise the load limit from 100 to 400 lbs.
We use this one. RV rated, holds 4 bikes and the arms fold down when not needed to carry bikes.
https://www.rei.com/product/854781/y...ike-hitch-rack
I believe it's on sale at a lower cost. Also check online for better pricing. Has built in cable/locking system, lock for hitch pin, can purchase support bars for bikes that are hard to mount, etc.