Thanks, Ray. I have struggled to find good cycling shoes for my wide feet as well. For sandals I like the Bedrock base model without the sculpted footbed. They don't restrict the shape of my feet though the soles are very flexible which might be problematic for some riders.
It seems there are a few clipless options,
Lake makes some with wide lasts but they are very expensive. It seems the
Stomp Lox shoes are on the wide side but I haven't tried them on. They are also expensive and they look like the offspring of a Danner Mountain Light II and a bowling shoe.
I recently picked up a pair of older Allen Edmonds shoes, the style is called Mitchell. Mine are black. These were produced around 2008 and only for a few years. Sometimes they turn up on eBay. Mine are 12 EEE and are comfortable for riding.
To my eye the Mitchells resemble traditional handmade leather cycling shoes: low profile, many eyelets, simple patterns, no graphics.
It's a world of difference from the Adidas Sambas I'd been cramming my feet into for the last few years of riding! I'd been having foot pain on the outer edge of my left foot in particular. This has resolved by switching to shoes that are as wide as my feet. I will say that if Sambas fit you they are a pretty good off-the-rack platform cycling shoe that isn't very expensive. And you can find them used for even less. I used a Krink paint marker to black out all the white leather on mine.
In the past I've been drawn to shoes from
Dromarti, Reynolds and
Lennon but I know they are all too narrow for my wide feet.