Micro Seiki BL91

I have a BL 91 with a MA505 (I think MKII) arm and wanted to get some cartridge recommendations.
I have a Leben CS-600 integrated and an Antique Sound Labs Phono Lux DT phono pre-amp. One day I was thinking of upgrading(?) to a Fi Yph or the Leben phono pre-amp. But that is down the road. And, I listen mostly through headphones, Ultrasone 780's. Proac Tablette 2000's for speakers.
It has been suggested in some quarters that the Dynavector 20XH would work nicely. I've been wondering about the Sumiko Evo III and the Ortofon Black too. Or maybe a step-up and a Shelter 301 or 501 MKII....
Thoughts or suggestion kindly appreciated.
I listen to all kinds of music but mostly jazz and rock and opera and French chanson and country and punk and blues and Dylan.....