There's a couple of places that you can go. In Miami there's Tipico like they mentioned above. A friend of mine and I go there all the time. We've been going almost every Saturday for the past year. Sundays are NOT packed!! Saturdays are definetly the days to go. The area isn't bad, although it's not high end. The music is great it's open early and closes at 5am. It's on the corner of NW 13 Ave and NW 36 Street. There's also Le Boulevard Cafe up the street on NW 25 Ave and NW 36 street. Sundays is the better day to go. More of a dominican ghetto feel to it than Tipico. It's a younger crowd. Great music though. They have a family night on Sundays from about mid afternoon till 10pm you can go with the family and kids. They have food, music and games. There's also Altarazana on NW 36 Street and the Palmetto, around 74 ave. Fridays are good cause there's usually a band playing. Lately, Aventura, Los Toros Band, Aguakate have been there. This friday Sergio Vargas will be playing. Those are the ones that are predominately dominican. There's also Club Boca in Boca Raton that's also dominican. I don't know where it's located. Give Tipico a try it's fun and there's plenty of dominican girls there. Hope this helps.
Minni