Hi, I'm an English language teacher at a high school in Turkiye. My students would love to correspond with teenagers who know English. I've got 46 students. I'd be pleased to read from you my colleagues. Bye for now.
Have you tried PikiFriends? Junior and senior high school students from many countries can correspond in a safe and fun setting. My Japanese students are on there and they would love to 'meet' your students. Check it out, it's free.