Do you need sneakers, or would boots be an option? If so, that opens the door to Goodyear welted boots whose soles can be replaced when they’re worn out by a cobbler. They’re also generally comfortable (especially after being broken in). You can go from premade boots (e.g., redwing) to custom boots; costs escalate quickly the more bespoke they are, obviously.
There are some Goodyear welted sneakers, but boots are probably easier to find.
I know it’s probably not the most popular suggestion, but the goodyearwelt subreddit is a great place to look for recommendations and reviews and post questions.
I’m sure the more bespoke options can be made that way. I just checked the red wing site and it looks like their heritage collection come in at a max of size 14. That said, they generally run big (1-2 sizes) so it might be worth visiting a store and trying something on if you can.