For North London, I suggest sticking to the Northen Lines or Piccadilly Lines if you are looking for traffic from public trasnsport:  King's Cross, Islington, Archway even Highgate and Mill Hill.  Islington was a gold mine for me a few weeks back; I used a private apartment for three days from Booking dot com site.

Romford has a reputation with some for dodgy clients and timewasters, but I only did two days at a popular chain on South Street.  I was low volume and only saw five guys in total over the two days.   It was fine for me and I met two possible regulars that are willing to drive to where I usually base myself in NW London.

Hey babe:) Thank you for your response and advice! I’m thinking to check out Romford sometime as it’s not too far from me!xxx