You might find a new old stock Ortofon arm if you look around the globe.
Also Jelco used to make 12" arms up until covid stopped production, and there are a few new ones still kicking around if you look.
Current production - best bargain in my view is the Audiomods VI from the uk.
They make to order for you.
I put one on a Platine Verdier and it was outstanding - and it is not expensive - less than half the price of the Raven for example.