Sounds wonderful! Linguistics would be your best bet. I did a double major in English and Linguistics. One of my colleagues majored in Communcation Studies, and later found she needed to take TESOL make up courses to teach ESL/EFL. If we could do it all over again, we'd major in Second Language Acquisition, a very popular, and growing field in Linguistics. For a fair percentage of students who enter that field and continue on to become very successful, English is not their first language.I want to teach English, publish books and online contents on learning English, and found my own ESL school in distant future. Then I have to decide which program to take in university. I'm considering the following three:
Why not head on down to the nearest university and make an appointment with the Dean or Associate Dean of each department to discuss your future plans?
All the best, and good luck!