Arm for Shelter 501, Graham Phantom, Triplanar?

I recently had a chance to upgrade my VPI Scout to an Aries II Plinth, with Super platter. I would like to try a non VPI arm, in part just to broaden my audio horizon, the JMW 9 I have been using was fine. From looking at these forums, it seems like Phantom, Triplanar, SME V, Schroeder, Basis Vector are among the most highly regarded arms. I have a Shelter 501. I would like to select an arm that has great synergy with my cartridge. Any suggestions would be much appreciated. Thanks!