You may want to try the US.
There are schools that offer you a J-1 visa after completing the CFI (or you start training under the J-1 straight away, not sure now)
And I guess the conversion from EASA to Canadian license may be reasonably easy. But the instructor rating you will have to do it from scratch.
The positive point about Canada is that obtaining a work permit could be less difficult than the US.
Best of luck!