Stayed near Mole beach which is near to the nude beach. Lots of hot nude guys on the beach and fucking in the bushes. Quite a sight.
Having said that, the traffic is atrocious during summer. Uber is plenty but getting in and out of the lagoon area is proven to be a feat. Knowing this and what is to offer, I might have stayed longer in Rio.
Asked some locals and yes there are no sauna com garotos in the city. Tried a Bruno from vivalocal. Went to his place for a massage with sexo. It was so so and he is from Porto Alegre. I think I met him once in Mezzuniu.
Tried a couple of normal saunas. Adelino is a bust. Its a 'spa' for men and the crowd demographic is older than most rest homes with exception of 1 or 2.
Oceano is good. Hot guys plentiful. Had a good time there.