Hola from Argentina...
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Essentially, as I teach it in classrooms, the world is divided in 3 parts as far as general procedures are concerned... USA/Canada makes one area, with their slight differences as far as ATC, the CIS/China part of the world, with metric airspace makes the second area for procedures, then the rest of the world, Europe, Asia, Africa, South America and Australia/Pacific, making the area were somewhat "straight" ICAO procedures are observed...
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The airlines mentioned above could provide you with that experience, in addition look at Air Atlanta Iceland. They hire crews from all over the world. If you want to fly internationally, also consider studying oceanic procedures, and the use of HF radios...
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And realise that while English is supposedly the ICAO language, it is spoken quite differently in other parts of the world, and sometimes of very limited use.
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Happy contrails