Ortofon is a good choice, other high quality MM carts would also be a foil to the analylitic sound, you describe. Maybe even a top of the line Grado would do it.
Cartridge Upgrade
Recently got back into analogue and bought a Benz Glider SM to be my starter cartridge. Now thinking that it is the weak link in my chain: Basis 2500, Vector 4, Simaudio LP5.3. I wish to go slightly warm as my Magicos can tend to be analytical. Thinking that Sumiko Pearwood celebration II or Ortofon Cadenza Black might be a good next step. Any suggestions?