for "companions" and then your city. Find and follow all the ladies who pique your interest (ladies will usually have their twitter links on their websites), and then follow their friends.  And switter is not the same as twitter. Switter is it's own little entity specifically put together for us. switter.at
For listings, https://listings.switter.at/  
Just search your city!
Have fun.

I had to get the hang of it at first but I am enjoying it. The big thing is to do the # symbol for keywords. I am sure the more experienced switter and twitter can tell you. I am still a newbie switter person. lol