As a fellow duck footed person, I've found that Barefoot style shoes offer the widest and most comfortable experience, as they're designed to let the toes splay out naturally instead of scrunching them up to conform to an aesthetic.

Another common feature of barefoot style shoes is that they are extremely flexible, and usually have very thinly padded soles to accomplish that, which can take some getting used to. They also generally offer no arch support (by design), and no heel-drop.

This video does a good job of explaining why they're designed that way.

If you decide to go that route, I'd recommend:

• Freet (Often use recycled material, average pricing, good durability, made in UK)
• Vivobarefoot (Higher pricing, generally more stylish, offer a trade-in program for used shoes which are refurbished/repaired to be resold for cheaper).
• Xero shoes (Average pricing, perhaps slightly lower quality compared to Freet)
• Whitins (Very affordable entry-level pricing, surprisingly well made and durable, downside is they are only available on Amazon).

If you're looking for something that can be re-soled and last the longest, Jim Green make a couple barefoot-style extra wide model heritage boots that can be resoled almost infinitely, but I personally found them to still be a bit too narrow for me compared to a set of Vivobarefoot boots (thankfully their return process was pretty seamless, with free return shipping). They're made in Africa. (EDIT: I just noticed that they now offer an extra wide AnatomX model, which wasn't available when I tried them. That would likely be an ideal BIFL boot for wide-footed people).