Without having heard your specific earphones, it'd be hard to make any recommendations. If you had phrased the question more vaguely by saying "similar quality" I'm sure you'd have lots of answers. :P But if you want the same sound signature entirely... you'd need to find someone with experience with your Shure specifically, or you need to put on and test some headphones yourself.
A brief lookup of your Shure says that they seem to be a very balanced sound, so I would recommend giving the Sennheiser HD 650 a listen. I can't help you much with other brands, Sennheiser research has always been my forte. I settled for the HD 598 and absolutely love them. They're neutral sound and very heady, though bass is about a negative two out of 10.