Days/Month to visit with the least crowd/queues in bars/massage parlors?
 

I'm visiting Bangkok on March next year.

From what I heard, rainy seasons arrive after the month of April and are less popular choices for tourism.

Anyone familiar with the Bangkok nightlife/prostitution scene can shed some advice on what is the best time/day to visit bars or massage parlours or even seek freelancers - and the crowd size and queues to expect?

Based on hearsay, mornings have less queue/crowd but also had the least attractive women plying their sex trade there. And supposedly weekdays are also less crowded in this context?