small wide foot equals limited availability or flat unavailability, I wear a 6 1/2-7 EE in combat boots. typically the smallest civilian boots I can find start at 8EE. I get utterly disgusted at shoe/boot shopping. I am on my 4th pair of Bellville combat boots since retiring in 2017. I told myself I did not want to be one of those old Vets that wore "Army stuff" but after waisting money on 3-4 pair of boots I went back to what I know fits.
There are a few boot companies catering to the hunting, wildland firefighting, and logging fields that make custom-made boots for guys, to their individual feet. More expensive that a normal pair of boots at that quality, and a bunch of them are what you might genuinely describe as investment quality or even heirloom grade boots - they'll last decades if properly cared for.
Nick's and Whites in the logging/wildland worlds come to mind, Lathrop & Sons in the hunting. There has got to be a few more out there, but those are the ones off the top of my head.
Something I learned at a different part of my life, when I was wearing tailored and sometimes handmade, custom business suits to work everyday, around people who had pretty high (and competitive) clothing standards, is that after a certain level the costs start to directly equate to long-term durability, in extremely fine ways. They last longer, especially if properly cared for. One $600 pair of dress shoes from the right maker will outlast 5 pairs of $200 dress shoes worn back-to-back, or more. There's a whole world of people who collect hand-made shoes that are sometimes 100 years old at this point, that were luxury when made and maintain a big part of their value - and they wear them. There's a bit of a crossover with watch guys - if you don't know what you're looking at, you'd have no idea what's going on.
I'm very hard on my footwear, so all that was quite a revelation to me, and a useful thing to learn and benefit from. There's cheap stuff that you replace regularly, mid-level "expensive" stuff that is often more about brand status than actual quality, and then at some point above that, the quality shoots far higher and you start getting into the
genuinely expensive stuff, but stuff that is actually elite in construction, materials, craftsmanship, etc.
If someone genuinely had difficult-to-fit feet, and put a lot of hard miles on them, taking the time to properly invest in a good pair of custom-made boots is definitely a worthwhile investment. Just to feel comfortable, let alone the health and endurance benefits that come from it. Just take some time to also learn proper care and maintenance of them, and you'll be good to go for a very long time.