There's plenty of options from existing ranges i.e. unarmored soldiers in plainclothes. I don't recommend using miniatures based on the late Qing as their clothing and headgear were heavily influenced by the Manchus.
Off the top of my head,unarmored figures from Assault Group's
Tang and
Song as well as Curtey's
Sung and
pirates come to mind.
The Wokou and local garrisons from Taiping Kangwo Tu(Resisting the Japanese at Taiping) by in large used the same armaments e.g. the turban(futou/toujin) and the round collared robe(yuanlingpao). Some minor differences between the two forces are the inclusion of scarves,puttees(or lack of) and sleeveless clothing.
Perhaps Clibinarium's forthcoming 28mm Ming range will be of use.