Which is the best traditional Chinese ancient instrument to learn?

The guzheng, I think, is a pentatonic scale instrument. Instruments with fixed pitch are better to learn, and only a few of the ancient Chinese musical instruments such as the guzheng, yangqin, flute, etc. have a fixed pitch, of which the guzheng is better to learn, and the cost is a little lower, unlike other instruments so easy to break. Learning to play a wind instrument also involves learning to master the breath, which is not conducive to creativity. It is recommended to learn the guzheng, learn well if a month or two will be able to talk about good