It’s probably going to be too complicated/expensive to go to a physical school in the near future (not a resident of any state) but I might want to teach English in Europe so I need to get a degree. I tried computer science last year but I dropped out due to lack of discipline/interest and I’m doubting I have the IQ for it.
Business is a safe bet.
If you’re planning teach English in Europe, it may make sense to major in something relevant to that. Linguistics might be an obvious choice, as it may help give a more analytical bent to learning languages. So would learning a European language, with the additional bonus of making it easier to live/move around in that area. Other options would be English or education.
But really, if you want to go through one of those programs that puts recent college grads in teaching positions throughout the world, your major doesn’t really matter, nor does it matter whether or not you know the local language (with the exception of most Latin American posts - they tend to want you to know Spanish). So pick something that you’re interested in and that you think you can finish.