John hi , recently had the same problem on my Mk3 , no suitable Dunlops and the Falkens which were very similar are no longer available either it seems . I went for a set of Michelin Crossclimate 102W XL , the grip and handling are excellent ,low noise level which is also good . Only time will tell how long they last but so far I am impressed with the quiet and handling of these tyres ,they are not cheap mind not much change from £600 ,which is more than I paid for the car .
Hope this is some help good luck with your tyre search .
Chris