its complicated...
older nissan small car hubs have some unique bracket size that only allow for swapping with other older nissan small cars.
N16 pulsar has a more common size, allowing FTO, maxima, skyline, silvia calipers etc. R32GTR sumitomo is the best for size/pad surface area/wheel availability for clearance. GTST are cast calipers and smaller pad but also 4 pot. brembo GTRs are bulkier and require spacers to fit im pretty sure. but if rolling in $$$ could get some aftermarket calipers.
N16 hubs machined and re-drilled to desired PCD, fit N16 bearings.
R32GTR calipers with N16 hub will take 288mm rotors, which means purchasing 300mm and machining down (not a fun job). then usually need rotors re-drilled too.