You can go to an early education institution or a music training institution as an assistant. These training institutions generally require even consultants to have an art+education background. Have you tried to apply to those institutions? That's quite training. You can contact anyone. Of course, you can also be a tutor, as long as the fee is not too high, a few students will teach first and earn a little money first. Kindergartens or private educational institutions sometimes have part-time music teachers, which are not demanding, but it is best to speak English.

By the way, if you have the idea of going abroad, music education will develop greatly. You can learn "music therapy", which is very needed in China. )