English teaching or English teaching. Or bar work. Those are your options. And then you've got to have something to offer that cannot be offered by an EU citizen. Good luck!

well, it's not a good time for opportunities about job in Barcelona, but it's true that comming from USA you will be better evaluated than other challengers... but for working in Barcelona a lot of companies ask to candidates to talk in Spanish and Catalonian... you can have a look at this website for making an idea about job offers, just select Barcelona on "Provincia" and you'll receive a lot of offers... in this website you'll find a lot of information about typical job interviews and how to write a good resume and a cover letter... obviously this site is written in Spanish... www.infojobs.net another similar one is www.infoempleo.com