What Cartridge Would Make the Best Match?

Here is my system:

Rega P-25 turntable
EAR 834p phono stage
Audio Analogue Maestro CDP
Unison Research UNICO integrated amplifier
REL Strata III subwoofer
Spendor 2/3 speakers

I listen to classical and jazz.

What would be the best cartridge for my Rega P-25?

I'm willing to spend up to $750 for a new cart in order to get the best match.

Many thanks for your advice.