As I said. "The new Technics" this includes the SL-1200GR. slotless, coreless, 3 phase. Some versions available right here in NZ for $3000.
The reference class Technics SL-1000R is available here in NZ for $31,999 ( Under US$20,000 )
The Pioneer P3 and the Victor TT-101 with slotless and coreless motors, also appear to be 3 phase, but I cannot be sure. Same would apply to the big Sony's
If you widen the category to just 3 phase...pretty much every Technics DD ever made.