Cartridge Suggestion Requested

Avanti1960
What tonearm do you have ?
I'm sure you've researched Vinyl Engine for tonearm compliance .
I bought a turntable with a Grado from the 80's a TZ ,
I have moved up to a Gold then to a Reference Sonata and now 
have a Reference Master 1 , Fantastic and highly recommended ,
each move up was worth it ,
but one thing I had to do ( which I should have done with the Sonata )
 is add some mass to my Rega RB300 tonearm .
I used rubber O-rings and added over 2.5 grams .
I was planning on switching to Soundsmith but they need a higher compliance tonearm and I didn't want to take a chance .
 
The Avanti was a beautiful car.
Rob

Transfiguration Axia

jjaudiosolutions.com

This is a jump in price but the Soundsmith Zephyr Star may bring to the party what you are seeking. I’ve had the 2m black, dynavector, and Benz carts. It’s the most balanced one of the lot and is my current go to pick up. 

@vair68robertmy 

my tonearm is 10.1g effective mass (VPI gimbal) 

I had a few Grados but they were decidedly not neutral.

@argon66      

thought about the zephyr star, will it sound good loaded at either 100 ohms or 1000 ohms?  if not i would need to research adding resistor jumpers to my phono preamp.  

I load mine at 1000 ohm. 
At or below 500 is far from ideal. 
Soundsmith recommends loading it at or close to 1000.