I'm Brazilian as well and I dislike when characters are all just dark skinned (like Beyblade Metal) or all just white. I like Idolmaster because it has three Brazilian characters and they're all fairly different from each other.
Also, US comic books are really bad about this as well. Almost 100% of the Brazilian characters are "born in the Amazon but moved to Rio" (which tells me either they think Rio is right next to the rainforest or they don't know any other city in Brazil) and most of them have Spanish names on top of that.