This is one of the best, if not the best sites to find beautiful ladies. Filter for English spoken and only look at girls who cost 150.000 or more. The lower priced girls many times are switcheroos. The Brazilian babes are beautiful, but there are some nice Chilean girls too.
As a foreigner, the only night clubs I'd suggest going to are Lucas Bar, Platinum or Palomino. But these are f....ing expensive to have a really good time and the girls are super aggressive/pushy in trying to get you to buy their services. The W Hotel bar use to have working girls there in the evening, looking for clients. Not sure if that's still a thing.
If you want arrange something with a group of girls and your mates, reach out to
@Scorpita (Scorpion)...she's a lovely girl and has a lot of friends and can probably pull something off. Good luck!