Portuguese in a group (São Paulo)

Hi,
I've recently moved from the UK to SP and am going to take individual Portuguese lessons.
However, would also like to meet new people who are in a similar situation and would like to get involved in group lessons.
Does anybody know of informal study groups/ classes that I could look into?

Alternatively, I'm also happy to pair up with people who can speak Portuguese who also want to practice English - suggestions very welcome!

Thanks,
Vivien.