The Lucky Horseshoe still is the main dancer bar in Chicago. they have dancers every night except Monday. On any given night, they have from 10 to 15 dancers. There are two stages, in different room, for dancers, and there is a third room with a bar that opens on weekends.
The owner of Lucky horseshoe also owns “@tmosphere” which has dancers late at night. It is up in Andersonville. It is much smaller with one stage.
Those are the only two places that are left in Chicago as far as I know.