Background: I have a 9W foot with an average/almost high arch, but typically just wear 9.5 in most shoes. Also, I'm trash at skateboarding, but have tried a bunch of shoes and when I'm not skating I prefer barefoot/minimalist shoes.
SK8 Hi's rub my pinky toe and are unwearable for me.
I have a pair of Rowans that would be perfect if it wasn't for the stitching that goes across where the laces start. It creates a tightness that ruins an otherwise perfect fitting shoe for my wide-ass, but also not flat feet.
So far, the Wayvee fits pretty great for me, and are the only Vans that I've liked with the Popcush insole (I typically swap for a thinner heel insole to make space in the shoe). The Wayvee obviously has some durability concerns due to all the mesh throughout the shoe. Currently I'd recommend trying this shoe above the rest for a wider foot from the ones I've tried.
The Cariuma Catiba Pro fits my foot probably the best, but it's so floppy and provides no support, so that doesn't really come as a surprise. Before the Wayvee I would have picked the Catiba Pro over any shoe strictly because of the fit.
The Velocity from Footprint has a pretty wide toe box, probably the widest I've tried in a skate shoe, but the outsole and midsole is also just ridiculously flexible that I can feel the parts where the outsole and midsole meet more than I can feel my board. It's distracting. The midsole is poured into the outsole, and there are ridges in the outsole that come toward the center of the shoe that I can feel when I wear them. Maybe I'm just mad, but the "DGS Vulc" shoes are a step back from FP shoes like the Mark I (which unfortunately is even more hideous than the newer FP shoes).