Tobita is cool. Streets with small frontages showing the women.
The hands thing doesn't mean rnt, just means restricted area.
There's a area near umeda also, just past the big kfc, lots of hidden places, not all fs but lots of drinking bars. If you have cash to burn, any massage or naru place area well worth it.
Walk around, if it looks seedy it is and just ask some young guy who looks dodgy in a suit to direct you to a girl.