tefl, experienced teacher from canada looking for work in bcn

i am tefl-certified, with over a year experience teaching in asia. i am a visitor to spain, no working papers looking for hourly teaching work in barcelona.

what is the hourly rate for someone with my qualifications, and experience.
what are the chances of finding hourly work for non-eu canadian citizens without working papers.

where are these jobs advertised, is it loquo, or somewher else.

thanks