Dynavector 10x5 what is next?

After getting advice from some of you about analog upgrades, instead of
Jumping to a new phono I want to upgradel cartridge.
Rest of system.
Rega p5
Luxman 550 A II
Harbeth compact 7 ES3
PS audio phono
AZ cables
Nordost IC.

Thank you in advance for your time.