The obvious one is definitely teaching, though not just English. For online teaching, English is a major lingua franca and any skill you might want to teach, from chess to calculus - there will be plenty of online students available in English, even if that may often not be their native tongue.

For in person teaching it's the same thing. Most countries have a system of bilingual schools, international schools, and then university type schools. And all of these offer English language instruction in everything from PE to Calculus. The major difference between a bilingual school and an international school is that the latter will generally pay much more and expect much more with certification a stated requirement, though in practice it often is not.

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Outside of that there's endless odd jobs available that are in need of English speakers. I have friends working in everything from marketing to rehab. A good idea there would be to pick a country you're interested, find the common job boards there (which LLMs may be excellent for, though I have not used them for this myself - yet) and simply search for 'English' or other such keywords. You'll be surprised.