i ordered the Primary Control FCL tone arm in January from the Netherlands, and should receive it next week. this arm uses field coil loading for the bearing.
https://www.primarycontrol.nl/Field_Coil_Loaded_Unipivot_Tonearm.html
a friend who also has the big SAT tone arm on hand being discussed here to compare directly, prefers the FCL. not cheap; the FCL arm has a US Retail of over $30k. that same friend also prefers the Durand Tosca to the big SAT. i use 2 of the Tosca’s in my system. it’s priced around $15k USD.
just received a field coil cartridge, the DaVa Reference (from Lithuania), which i’m starting to explore. the DaVa is not cheap but will not break the bank.....at around 6k Euro's plus the power supply which as a field coil it needs. ordered that in early January.