I belive the Miyajima cartridge for 78 rpm is a must if you want some magic. And Fidelity-Research FR-64s or Lustre GST-801 tonearm.
If you want to continue with MM cartridges with styli for 78rpm the best tonearm for them in my opinion is Technics EPA-100 or EPA-100 mk2.
Off-centered record can be centered only by moving a record itself on the platter, you can’t fix this problem with tonearm, you can only move your record (expand its spindle hole if necessary) until your arm does not move left and right in the groove while playing.
It’s easier to fix it on 45rpm singles, because the hole is bigh enough to move the record 3-5mm off (without adapter).
If you want to continue with MM cartridges with styli for 78rpm the best tonearm for them in my opinion is Technics EPA-100 or EPA-100 mk2.
Off-centered record can be centered only by moving a record itself on the platter, you can’t fix this problem with tonearm, you can only move your record (expand its spindle hole if necessary) until your arm does not move left and right in the groove while playing.
It’s easier to fix it on 45rpm singles, because the hole is bigh enough to move the record 3-5mm off (without adapter).