If you track socio-environmental issues, Indigenous peoples, and/or Latin America, here’s a whole series about the situation in Brazil by Mongabay and funded by the Pulitzer Center that may interest you or your colleagues.
According to the last census there are about 900,000 Indigenous people throughout Brazil, and more than 1/3 of those live in urban areas.
These cities are heavily influenced by their Indigenous populations, from the names of things to the culture, foods and traditions, yet they must fight all the time against erasure.