Hi James--warmest welcome to EpicSki! You might want to repost your question in the Equipment section, or perhaps even the Instruction section, where some very good boot gurus are more likely to see it.
There are certainly boots that fit narrower feet better than others, and that is where you should start your search for the perfect fit. An excellent boot fitter will be able to look at your feet and determine which boots are most likely to fit. From there, you will probably still need the services of the expert fitter, to build a good footbed and to make sure everything else fits perfectly, and aligns you for optimal function and comfort. If you really have "problem feet," they may recommend a custom foam, silicone, or other liner. But even those work best in a shell that isn't too far off!
I'll make a quick shameless plug here for our upcoming EpicSki Academy in Utah in January. Besides a great instructional program, we will have several top bootfitters and alignment specialists there to give a presentation, and to provide individual services to those who need them. (The presentation is part of the program, and the bootfitters will be there throughout to answer questions. Any individual services they provide are a la carte, and you will need to arrange it through them.) Check out the camp details, and plan to join us if you can!