There may be some simple rules of thumb:
If your family always buys GM/BMW/Audi products over Ford/Toyota/VW, then buy a JD tractor.
If your family always buys Ford/Toyota/VW then Kubota tractor
If your family is less brand conscious and more of a bang for the buck type who buy Subaru/Hyundai/Kia, then Kioti, Mahindra, LS tractors will suit
If your family likes quirky brands like Mitsubishi or Suzuki cars then Branson or TYM
If your family loves Yugos then Belarus
There are a few subdivisions though. If you buy a Camry over a Lexus equivalent then L series Kubota over L Grand. If you buy a Toyota pickup then M series
If you buy an Escalade over a Suburban then R series over E or M series JD
If your family drives a Miata then Powertrac or other articulating tractor