I can recommend the Thule Apex swing-away bike carrier.
https://www.thule.com/en-us/us/products/carriers-and-racks/bike-carriers/hitch-mounted-bike-carriers/thule-apex-swing-4-bike-9027-_-1260560
I have had mine for about a year now on my 2013 JKUR. It is sturdy, holds up to 4 bikes and swings open enough to open the tail gate and back glass. This works for the 32" tires I have on the Rubicon, it might be a tight fit if you have a larger spare.
https://www.thule.com/en-us/us/products/carriers-and-racks/bike-carriers/hitch-mounted-bike-carriers/thule-apex-swing-4-bike-9027-_-1260560
I have had mine for about a year now on my 2013 JKUR. It is sturdy, holds up to 4 bikes and swings open enough to open the tail gate and back glass. This works for the 32" tires I have on the Rubicon, it might be a tight fit if you have a larger spare.