Any Plus size Gyaru (Any sub genre) brands?

Well in general all I can say is that just buy any clothes that fit the style you're going for because obviously Japanese brands even gyaru brands run very small. So yeah I'd buy clothes from any store that you can use to style. 

Although very recently there is a person on tik tok who just started their own gyaru brand, they so far have one shirt (which fits tsuyome) and they have 3XL but they are coming up with more projects in the future, I believe right now their working on a agejo product and their brand will always carry xs-3xl sizes for every product. (BTW, Their account username is @auradolva - on tik tok.)

Traditional brands don't typically carry plus size, unfortunately, so you kind of have to get creative and make your coords read as gal with DIY/accessories. A good rule of thumb: if something is less exaggerated, make up for it by exaggerating another part. For example, if your outfit doesn't read as gal, wear an extra crazy make or huge hair. It also depends on your personal substyle though, because some are naturally just less exaggerated in general.