I've been looking at options for 15" tyres for my Corvette. I'm running 255/60/15 on all 4 corners.
The choices are pretty limited these days. There are 4 main ones to choose from.
I reckon the Mickey Thompson S/T is about the best bang for buck at the moment at $190
Mickey Thompson S/T
Hercules HP4000 is readily available in that size and about $200 each
Hercules HP4000
The Cooper Cobra is another at similar money
Cooper Cobra
The old BF Goodrich T/A is getting hard to find. I think they are still in production but no one seems to stock them any more.
BF Goodrich T/A
As far as tyres go they all pretty much of a muchness.
If you want something performance oriented you will probably need to look at AVONs but they are hellishly expensive.