What are the best countries to teach in (as an American) in terms of long-term work visa prospects?
I apologize if this is covered in the Wiki or previous posts, but my specific question is: which country/countries provide the best visa options for Americans? I am an ESL teacher in the public school system (Boston), and what I'd like is to go somewhere every summer, the same place, to teach during the summer school breaks. I understand that I am unlikely to find an employer who would sponsor me for only the summer, so what I am imagining is that I would first teach somewhere for a year, establish a relationship with the school, and then go back during the summers. While this might be hard to find, if we assume I can find it, which countries would even allow this legally? Are work visas typically just one 6 month, 1 year, 2 year (fixed temporary term) deals, or can they be renewed in the way I am describing? Or do any countries offer very long term work visas? Are work visas generally entirely contingent upon an offer from an individual employer? Thank you for any insights