really depends on his fit, flexibility, whether he races, but he’d most likely be better with a 58. A 58 is likely to handle better too, as trail figures tend to get quite low in larger frames.
Im 193, run 180mm cranks, 802mm saddle height and feel most comfy with a stack/reach of around 610/405 with 120mm stem and 9cm bar drop. For most sizes I’m in between 58-61. Rough estimate for that frame stack/reach is 58-590/394, 61-620/400. So depends on how much bar drop he wants?