Variety may be the spice of life, but it's no fun for tire manufacturers. Tire production can be difficult for some manufacturers to produce the latest and greatest option for vehicles that have an odd size. Case in point: the 2013 Mazda CX-5 Grand Touring's unusual 225/55R19.
If you're not happy with the few choices in this size, one option to consider is to install a different size. A proper replacement size must fit the Original Equipment rim, have a comparable diameter and meet your vehicle's load carrying capacity requirements. The optimal alternative size for most scenarios is 235/50R19. 235/50R19 is 28.3" in overall diameter and fits on the 19x7 O.E. rims without rubbing.
Using a different tire size like this isn't a radical change. It's about 1/2" wider and approximately 1/2" smaller in diameter. However, there will be some negligible speedometer differences of 1.4% (your speedometer will overestimate your actual speed by 0.8 mph at 60 mph).
By going to this alternative size, you now have an extra ten options to choose from. Are you a Michelin fan? You can run their 235/50R19 Primacy MXV4. Did you love the Bridgestone Dueler H/L Alenza on your last SUV? Its replacement, the Dueler H/L Alenza Plus, is available in 235/50R19.
Michelin Primacy MXV4
Bridgestone Dueler H/L Alenza Plus
For more information on changing your Original Equipment tire size, read "Speedometer Accuracy."