You're going to find that Euro brands will generally fit narrower than American brands. I have some Dainese and Sidi (Vertigo Corsa) boots. With the Sidis I need to wear 2 pairs of socks, depending on the thickness of the socks. I like the Corsa part of the Sidi Vertigos, it's a strap that goes over the top of the foot and cinches it down. It helps me keep my heels from slipping.
There's closeouts now on the Vertigo boots. The replacement is the Sidi Vortice. Otherwise, check out European brands for sure.