Thanks Demedici and TotallyOz for your advice. I had the opportunity to visit Belo Horizonte for a few days and really like Sauna Olimpo.
The sauna is one of the nicest I have visited in Brazil. I was there mid-week with 10-20 boys there each night. I found the atmosphere to be much more relaxed with many of the locals coming in for a social setting, playing cards, having drinks with the boys and the boys being much less aggressive about programas. They have the typical shows and of course, bingo on certain nights. The entrance fee was R$40 (it is R$52 on weekends) and drink prices were much less than in Rio or Sao Paulo. The sauna has a number of free small cabines for use, which they keep clean. Overall, I would recommend a visit to Belo Horizonte for a weekend.
Here is a link to the Olimpio website with photos: http://saunaolimpo.com.br/