There are very fewchinese d2c manufacturers making rims like that. Farsports make some gravel rims that wide, nextie, lightbicycle. Though the profiles aren't the best aerodynamically, particularly nextie. Ideally you want the rim edge to be wider than the tyre and then the rim to ulge out a bit before tapeting off so the cross section of the tire and rim is as eliptical as possible.