If Otsutsuki still on earth which Nation and Clans will they are

[Kirin The Dragon Sage]

Kumo
Konoha
Mizu
Suna
Iwa

I have a straight answer but Uchiha fans will deny this...

 

[Zealous Sparks]

Kumo- The Gold/Silver Brothers were said to be distantly related to the Sage.

Konoha- Where the Uchiha/Senju/Hyuuga clans all reside(d).

 

[1Told]

Kumo- The Gold/Silver Brothers were said to be distantly related to the Sage.

Konoha- Where the Uchiha/Senju/Hyuuga clans all reside(d).

and also Suna, the puppet technique is from Hamura that's why Toneri used it a lot :mew:

 

[Uzumaki Bolt]

Yes, Cloud's Gold/Silver brothers were supposedly related. To the sage, but related.

the Kaguya clan showed many of the Ootsutsuki phenotypes. which country were they from, again?

the Hyuuga clan (obviously) had the eyes.
the Uchiha clan are also descendents.
so are the Senju/Uzumaki clans.

Puppetmasters in the Sand don't mean they are descendents. It is every bit possible that a wandering ootsutsuki brought it there.

 

[ninjarasengan]

and also Suna, the puppet technique is from Hamura that's why Toneri used it a lot :mew:

Monzaemon Chikamatsu (近松モンザエモン, Chikamatsu Monzaemon) is the inventor of the art of puppetry. Originally using puppets as a source of entertainment, Chikamatsu worked diligently with several shinobi to convert the talent into a unique form of combat. Eventually, he created the Puppet Technique, in which chakra strings are used to control puppets.