I have one of an ICECO 68.6QT VL65 Dual Zone Portable Fridge Freezer with the added protective cover. It works great and just fits in the back of my LJ. I also have on of their power banks and it will run off of it all day, so you don't have to worry about your battery running down when the engine is not running. We've had it since 2023 and have taken it camping several times. It has also run weeks/months on end a few times - once when we had too much venison, and most recently when our refirerator/freezer in the kitchen started going bad and we started using it as a second freezer. It's been going for almost three months now.
ICECO is kind of weird, though, as they do not have a consistent look among their offerings, so I think some of their coolers are ICECO branded versions of what everyone else carries. The one I have and the others that look like it with metal shells seem to be exclusive to them, but the plastics ones look like what everyone else sells.