Harmonica can be divided into blues polyphony and chromatic scale. Each harmonica has different playing methods and timbre skills, so you can learn your favorite one as a beginner.
I still recommend importing harmonicas. It is very good to choose Japanese Suzuki and Bao Tong for polyphony. Bruce personally thinks that GM and SP20 of hohner200 yuan are absolutely suitable, and Sirius of Suzuki should be chosen as the chromatic scale! The harmonica can be found in a treasure. Learn it before you buy it to prevent impulsive consumption. )