Canon's LUCIA-12 (Pixma Pro-1 and photo wides) uses a Chroma-Optimizer ink to selectively clear coat areas to balance the gloss level. It works quite well in my opinion. The CO cartridge is also part of LUCIA-10 (Pixma Pro-10).

I've personally used it with Canon's Pro Platinum, Pro Luster, and Semi-Gloss Plus papers with great results and consistent reflectivity across the image, though I think in theory it should work well with most papers.

To discuss a little more on the problem, the issue is that the pigment causes variations in the level of the paper which cause disruptions in a smooth level of glossyness. Chroma-Optimizers fill the gaps between the pigments and thus balance the level of reflectivity to avoid issues with variable levels of reflectivity that generally make pigment inks look weird on glossy paper (due to uneven reflectivity.)

Without some kind of clear coat optimizer, there isn't really any way for the problem to be addressed by the paper itself. It would have to absorb pigments differently based on the color and amount of ink being deposited on the page and that requires a level of intelligence that paper can't have. Pretty much any other technique to deal with the problem would have to have either a printer or ink component, though post coating the image yourself may help.