First of all, neither teacher qualification certificate is too difficult. As long as you are well prepared, there is no problem in passing the interview. Generally speaking, it is most appropriate for everyone to apply for the teacher qualification certificate of the subject they are good at. Only in this way can we play an extraordinary role in the interview and deal with it calmly.
Secondly, the purpose of the teacher qualification examination is to prepare for the future examination, so I suggest you consider this issue from the perspective of examination compilation. Because when you take the certificate to take the teacher recruitment examination in the future, most of them require the subject of the teacher qualification certificate to be consistent with the subject you apply for, otherwise you can't apply for it. Relatively speaking, Chinese is a liberal arts and mathematics is a science, so you can combine your own professional choices.
Finally, if there is no counterpart or similar major and no good subject, then it is suggested to search the local teacher recruitment plan over the years and choose the subject with the largest number of recruits.