Complex sentence: Apart from these sorts of bars, there are a number of other venues for the sex trade; some bars, while not employing staff to serve as bar girls, will allow women ("freelancers" in this context) to solicit clients.
Split into simpler sentences: Apart from these sorts of bars, there are a number of other sex trade venues. Some bars, while not employing staff to serve as bar girls, will allow women ("freelancers" in this context) to solicit clients.