Unless it is something unusual, I just buy whatever the little mom & pop place have on their shelves. The guys come outside with floor jacks and I'm out of there in 30 minutes. These are poor people that work extremely hard for a living. I'm not buying tires on-line and bring to them for them to swap. It costs a little more, but if I can help these people eat and pay their bills by going there, I prefer that.
I just had some mud tires (Dayton brand, I think) put on my Chevy pickup (235/85-16), bought a tire for my trailer after it disintegrated under the load of my dozer and bobcat, and had a slow leak fixed on my wife's car--$800 for all of that. I was done it 30 minutes.
I've had special tires mounted by them form equipment, but if they have something close, I buy theirs. I hate seeing boarded windows.