My late mother in law, a California kindergarten teacher, spoke Portuguese from having lived in Brazil for several years. My wife grew up calling liver "figado" because of that.
There are some Brazilian instances, pretty sure they speak Portuguese as well. And it's the largest minority in Luxembourg, so chances are that you'll find someone on their instance as well. There's at least one, but I forgot the name.
Brazilians are the one of the largest (at least top 5) minority in almost every European country. Brazil is huge and has a very large population, lots of whom have European descent so they can get citizenship. Statistically alone that should give you lots of Brazilian immigrants in Europe, when you combine that with the extreme right getting power there and the crisis they're causing in the economy and you have even more incentive to migrate.