If you have a teacher qualification certificate or graduated from a normal college, you should be able to teach in a middle school or a vocational college. However, it is difficult for colleges and universities. Maybe you can go to some training institutions to teach, and the requirements for teacher qualification certificates may not be too high. But it will always be teaching and educating people, so the requirements for your Japanese professional knowledge and spoken English may be higher.

If you like teaching, you can still consult more and find a suitable education job.