Therefore ideally if using more than one turntable you would be best to pick some cartridges that use the same gain and load.
For example you could go with all MM's - Soundsmith moving iron/Gradomoving iron or Ortofon Black are all solid performers.
Or you could go with all MC's - most MC's fall into 3-4ohm ( e.g. Koetsu ) or 40ohm internal impedance ( e.g. Benz/Denon/some Dynavector ).
Lyra's such as the Delos are less load dependent.
My suggestion is decide on MC or MM, then check reviews for your price range - then think about load requirements compared to the CAR.
Pick a couple of cartridges with similar load & gain requirements.