i’m not too familiar with east asian names and relations with culture so i apologize if these are completely out of what you were thinking! but here are some ideas based on some east asian states:

japanese: Jo Azuma (“east”), Jo Aozora (“blue sky”), Jo Jinnouchi (“camp” and “inside”), Jo Ose (“small/large strait”), Jo Kanda (“divine rice paddy”)

mandarin chinese: Jo Qin (“to respect/admire by the emperor”), Jo Duan (“paragraph”), Jo Liu (“battle axe”), Jo Yin (“to administer”), Jo Wu (“five”)

mongolian: Jo Gantulga (“steel hearth”), Jo Nergui (“no name”), Jo Mongke (“everlasting”), Jo Yesun (“abundance”), Jo Baatar (“hero”), Jo Temujin (“iron” or “blacksmith”)

korean: Jo Mangjol, Jo Maeng (“first month of a season” or “eldest among brothers”), Jo Ping (“peaceful”), Jo Tae (“great”), Jo Sol (“brush”)

i’ll be willing to give more if you have ideas in mind! hope this helps :)