ED Visa Friendly Language Schools

I checked previous posts but were a lot older. Does anyone have any credible language schools that my Colombian fiancé can enroll in, as well as apply through the accredited school for a legal ED Visa type minimum 6-12months since this is probably our best option since I’m in the process of reclaiming my Thai citizenship & she would be limited of staying on tourist visa due to crack down on border runs, would hate for her to have to travel all the way back to Colombia until I get my citizenship reclamation process finished which can take 3-6 months. TIA 🙏