I would ditch the run flats. Once you go back to regular tires you won't believe how much better the car rides and drives. The only downside is a less sharper turn in or lane changing ability.
I would go with Michelin PS4 or PS4S. The PSS is the older tire. What I LOVE about the Michelin's is that they are quite, have a great ride and drive just like new even when worn down to the thread bars. Their grip in the rain is unreal!! This tire will spoil you. It's a great tire.
Most tires make that bad wheel bearing sound when they start to get old... I'm talking to you Continental! But the PS4 are such a wonderful tire. The only other negative this is tire life on our car's isn't the best. ~15K to 20K miles for the rears.
Lots of people upgrade the front tires to 225's and 255's in the rear. This combo works great. Or your can go with 225's/245's.
My new Michelin PS3’s 225’s & 255’s…
https://www.1addicts.com/forums/showthread.php?t=510873
The important thing to remember is IF you ditch the runflats... you need a tire with a STIFF sidewall. Be sure to get the XL or XXL sidewall specs on your new tire.
Michelin(and others) also make runflat tires too. IF you want to stick with RFT's. But honestly they are so much more money, ride hard like a rocks. And you can feel the unsprung weight when you switch to regular tires. You just have to spec high quality tires(when getting regular) tires bc sometimes your can make the car's handling too sketchy with cheap tires. Spend the money on Michelins.
With runflats you can more the steering wheel say 1/4 inch(at highway speeds) and the car will move. With regular tires I'd say you have to move the steering wheel 3/4 of an inch before the car moves. That is the one negative down side to ditching RFTs.
Good Luck,
Dackel