My most comfortable and best gripping flat pedal shoes are safety trainers. I don't have particularly wide feet, but these are wider than the Pearl Izumi and Five Ten shoes I've had. Mine are Dickies, which have been discontinued, but I suspect all such shoes will have a generous fitting and there's probably a better chance to see and try them locally than there is for cycling shoes. They don't look that different from MTB style shoes, about the same weight, composite toe protection, the best anti-slip soles of any shoes I've owned, a comparable price and likely to last longer.