My words literally betray me.
Just go with what the rules suggest and build on a tile that is on/near all three of the following tiles:
My guess is that players would start in a tops and bottoms of the 3rd column.
I could also see players starting at the 2nd from the top and the 2nd from the bottom of the 2nd column.
I wasn't sure if anyone who plays this regularly would have an opinion on exactly where to start rather than generally.