Edhelms,
Some training organisations in the US are controlled by a parent training organisation based in EU. For these overseas training operations there is no need for direct EASA oversight and therefore the organisation details are not included in the list provided by CaptainSpock. An example fitting this description is Naples Air Center in Florida.
Moto,
I'm currently researching Canada. No visa for PPL training as long as its less than 6month.
Canada offers open work permits to
youths and post-graduates which includes training for a Canadian flight instructor rating: see
special cases at the bottom of
Find out if you?re eligible ? Post-graduation work permit.