My map already has Yungui in that area. So overall it’s the same layout you are suggesting but different names.
6 minor civs of ethnic minorities concentrated in southern China seems like massive overkill especially when most of these are very geographically restricted.
Adding a Taoist Temple would fit in with the current religious settlements so that’s fine. A Forest Monastery that represents Theravada Buddhism would be a great fit for southeast Asia. A Kongsi settlement could be a great option for breaking the mold of religious settlements without needing to pick highly concentrated ethnic minorities.