Shimano do a wide fitting as well as a ‘normal’ one. i got a pair of wide fitting Shimano MO87 shoes recently that accommodate my bunion-infested feet better than the older Trad-fit shoes they replaced. I think Merlin have the same shoe on offer right now for about £55, reduced from 79.
If you have truly abnormally wide feet, Keen do an SPD-equipped shoe that will give you that Hobbit-chic look you’re after. Can attest to the comfiness of other Keen shoes but the SPD one was, sadly, out of my price range at £100 plus.
EDIT: Scratch all that pish, never realised it was road shoes you were after. D’oh!