I’m going through this process currently as some of my current shoes make my little toe go numb.
The biggest lesson I’ve learned is that sizing differs a lot, even within the same manufacturer. For example, I have one pair of shimano wide fits that are really comfortable, but when I bought that exact same model in the MTB variant, they were actually a bit narrower.
The best advice I can give is just to try on as many different brands and styles as possible and don’t worry too much about what suits other people since their idea of “wide” could be very different to yours.
Lake and Bont are the only 2 companies that actually care about foot shape, their size charts state a width so that might be worth looking in to. Shimano wide fits in a 47 are approx 10mm wider at the ball than their standard fit.
Companies like Giro and Sidi have their HV and Mega fits, respectively, and these offer more volume in the shoe rather than extra width at the insole. This could be an option if your feet are squashed as a result of a high arch rather than necessarily a wide foot.