+1 on Salewa Crows
My feet are "normal" width, high arch, and narrow heeled (one is half size shorter and slightly wider than the other fwtw). Typically boots that hold my heels crush my forefoot/toes and toes boxes that fit my forefoot leave my heel swimming; these are all the Sportiva and similar Euro brands. EXCEPT Salewa. So, if you think you have Salewa feet.... they are awesome. I have some quibbles with their lace hooks, but no other brand boots fits as well for me so, <shrug> happy feet.
A little too stiff for me for covering ground on a trail, but carrying a 40lb pack off trail and edging around on steep stuff they really work well for me. They are the stiffest of Salewa's light boots. I think if the soles were any stiffer they wouldn't have enough ankle support, if that makes sense?
These have a fiberglass filled nylon shank. If you want more flex they also make the Mtn Trainer which is the same boot but the shank only has nylon.
Edited to add: The next bump up in weight/stiffness is the "Raven"