2 Frazzled makes a very good point when buying a brand new vehicle, most especially after a new vehicle design change, even if only an adjustment in styling.
It is less risky to shop for a tow vehicle that is one or two model years old because tow bar companies like Roadmaster and Blue Ox have their interactive websites to select their existing products for past vehicles.
Plan on doing some extra research. Just because a tow bar is made for a particular vehicle, doesn't mean you can tow it. Especially years ago, it has been limited to manual transmission versions. Some automatic transmission vehicles can be towed, but every 500 miles you have to start the engine and go through the gears to circulate automatic transmission fluid for internal lubrication protection.
Our first tow vehicle was a 2000 Toyota MR2 Spyder with a manual transmission. That was an extremely easy tow vehicle.
Our second (and current) tow vehicle is a 2006 Jeep Liberty with an automatic transmission, but with an additional 4x4 gear transfer case. We put that into neutral so the drive shaft to the automatic trans doesn't spin while the vehicle is being towed.
As of late, it seems there are fewer towing choices, maybe because there are fewer manual transmission vehicles, but also because the automatics have gotten more high tech with features like push-button transmission shifting, push button gear transfer case shifting, CVT technology, and so on. I don't have statistics, but various model Jeeps seem to be most popular for one reason or another. And I think they've had push button gear transfer case shifting for some time. So there are exceptions to everything.
Regarding your specific choices, the Buick, Ford, and Lincoln, I would go to the dealer and ask to review the owner's manual. Read through the section on 4-wheel-down towing. Don't take anybody's word, not from here and surely not from any dealer. Read it for yourself. If you tow a vehicle not approved by the manufacture, you will void your new vehicle warranty.