FYI, I am in the process of completing a Teaching English to Speakers of Other languages / Teaching English as a Foreign Language (TESOL/TEFL) course.
This will allow me to apply for jobs in countries where they either employ teachers in schools for that purpose, or allow me to teach in a private capacity, in groups, individually or online.
I'm halfway through the online course so far, and it's taken me about a couple of weeks. There are testimonials from others who have completed the course in just two weeks.
There are already numerous existing adverts for current vacancies. A simple internet search will throw up many adverts and opportunities.
Some countries will require you to have a sponsorship letter from your potential employer for your visa application.
No knowledge of the native language of your chosen destination country is required. But of course, it would add immensely to your CV.
It isn't what I really want to do, I'm now retired and I want to move to a South East Asian country. It's a process through which I can attain a long term visa to move to another country, and arrive with a job waiting for me.
If you want the details of the course, I'm happy to provide it. I won't initially as it would probably be considered as spam.
There are numerous providers of such courses. Some of the more expensive ones guarantee a job interview at the end.
There are also numerous online providers of teaching aids.
I'm happy for you to message me, if you want.