TireRack should be your go to source for whether a tire will work. Where you buy the tire is a different story.
I recommend OEM, but YMMV.
Also make sure to get your 19s rotated regularly, so you can avoid having to replace two and can replace all four at once.
Lastly, I absolutely do not recommend having half your tires be one kind and half another; they will wear differently, because the tread patterns are different, but most importantly: the car may handle unpredictably, which may never matter, but your tires are the one thing that matters most in your safety; they are the one thing that keeps you on the ground.
I would replace all four, now, if you do the Bridgestones (the links don’t work, btw). I would not have half OEM (which I believe is Pirelli) and half Bridgestone.
If you replace with OEM, that’s fine, as they’ll be the same tread pattern, and then you can just replace two.
My $.02