Hello & welcome.
I 've used ErgoTech guards in the Renegade and the current Compass. (And a Fiat 500L)
They are the manufacturer in Italy that Fiat/Jeep use for OEM.
Barrier nets and screens DIN-Norm succesfully passed, baggage retainers, net pockets and other products for your dog.
They do metal frame grills with nylon netting or metal horizontal bars. Attachment is to the 2 outer rear headrests.
The nylon netting ones give better rear view.