You can get reasonable results printing minifigs with a FDM printer ... tiny nozzles (0.1 mm), tiny layer heights (0.05 mm) and very slow print speeds (<10 mm/s) will get you a long way ... but even then resin printers just blow the results out of the water easily.
Though, as others here mentioned, resin may not be what you want either. I looked at them briefly when my son was interested in painting minifigs, and decided I didn't want to deal with resin and I DEFINITELY didn't want him working in resin, based on the messes he makes with cereal.