Where can Pokemon Golden Heart be renamed?

Huang Jincheng has a building similar to the purple tent of a circus, where an old man can change your name.

Huang Jincheng is a city with a broadcasting tower.

There are small houses in Huang Jincheng, the capital, and Ziyuan Town, Kanto where the name of PM can be modified. If the owner of PM is not himself, it cannot be modified.