What are some high impedance cartridges?

No SUT is really “for” a high impedance cartridge, except insofar as high impedance cartridges work best with lower step-up or turns ratios, like 1:10 or less or whatever results in a satisfactory impedance match while also adding enough voltage gain to drive the phono stage. At least that is how I see it.

I know that Auditorium 23 SUTs are specifically made for either low impedance cartridges (Ortofon or instance) or high impedance (Denon).

Benz LPS is 38 ohms due to using a non-magnetic generator core. 

I'd be more inclined to switch SUT and look for low impedance carts ;)

I'd be more inclined to switch SUT and look for low impedance carts ;)
 

You’re right of course. Looking for a shortcut though just to play around with different carts…

The upper end Clearaudio & Kiseki pickups are relatively high @ 40 ~ 50 ohms.