The Grado Sonata V2 reference or statement. The difference between them is the output. Both would be a good match with the tonearm on the 1200GR. BTW, The Needle Doctor has a return policy if you don't like them!
https://www.needledoctor.com/analog/analog-components/Phono-Cartridges/brand/Grado-Labs
https://www.needledoctor.com/analog/analog-components/Phono-Cartridges/brand/Grado-Labs