Recommmend tyres for my XJR6

Hi all, looking for recommendations for tyres for my XJR6. I’m running 255/45/ZR17. I have Michelins on the front but they are not available anymore and Marshall on the rear but reviews are not that good. Are there any good alternatives? TIA, Rod

Just put a set of Michelin’s ran for a 6 hour cruise, very happy, smooth and quiet. Can get you the model# stuff if you like, they were $675

Hi Bob, I’m on the other side of the pond and Michelins aren’t available in that size any more, I’m considering Dunlop Maxx GT but thought I would throw the question out there to see what other owners thought, more as a case of what to avoid.
regards, Rod