Have you watched Megalo Box? If you're into sports, it's very good. Not sure what specific country they're from, but they are South American. Others:
https://www.mangago.zone/read-manga/favela_noka/
^One of the MCs is Brazilian and it takes place in Brazil
https://www.mangago.zone/read-manga/doko_ka_tooku_no_hanashi_wo_shiyou/
^Not sure if specified, but it takes place in South America
There's more, but I can't recall them rn. I'll reply again if I remember if you want.
The Dirtiest High has a mexican ml. I haven't read it yet so idk if the story is good. But based on what I've seen and heard, it's pretty good representation.
I'm just curious of how many storys have characters from LATAM on em, when there is any foreigners is either Americans or British people especially in mangas as the ml/gl.
It doesn't matter the genre or if it's actually good, but I just wanna know the name and who is the character! (≧∀≦) Ty in advance