Advice on first MC cartridge

I have a Merrill/Scillia modded AR tt with a Rega (moth)301 arm, AT 150-mlx
cart and Ray Samuels Nighthawk phonostage. I like the cartridge but would like to try moving coil in the $1k-2k new or used range. I really like the musicality of this cartridge but think I could get more detail, extension etc. Anyone with a Rega tonearm that has a good match with a higher end Dynavector, Ortofon,
Lyra, Clearaudio etc. Any advice appreciated.
George (my wife is auntjenof2)