If you don't mind traditional laces, Nike has some great boots for narrow feet. The Salomon F boot series has always been that way too, and they have speedlaces.
In general, brands like K2, Vans, 32 are wider so you should prob avoid those.
14 NeverSummer Prospector Splitboard . 14 NeverSummer Proto HD . 13 NeverSummer Cobra . 13 Gnu Space Case EC2PTX. 11 Nitro Team Gullwing
14 Now Drive . 13 Now IPO . 13 Salomon Hologram
14 Flow Hylite . 13 32 Binary