There has been no players on their levels since. Top players these days have their defining weakness and errors that can be used against them. LD and LCW only has each others as weakness, Chen Long is an honorable mention also. The closest we've ever gotten with these players is Momota, but he lacks competition to push him to his highest level.
The audacity to stencil LD on his racquet strings truly shows the stature of the man. Name an example elsewhere, I cannot. Not Federer, not Khan, not Waselenchuk. Lin Dan was/is a one-off and we should thank our stars to live in his time. Indeed if Lin Dan the Legend never existed we would have to make him up ourselves.