Speculations Yonko poneglyph readers

#1
We know Luffy has Robin and Teach has Pudding. What about the others?

My guess:

Shanks is allies with Saul, this makes sense as he seems to be allies with the giant pirates.

Cross Guild will capture Sukiyaki. Buggy was a Roger pirate, so he knows that there are probably poneglyph readers in wano(due to Oden). He might even know about Sukiyaki. My guess is Mihawk will invade wano, kick Yamato’s ass, and steal the poneglyph along with Sukiyaki.
 
#3
Buggy doesn't need the Poneglyphs to be Pirate King. On the other hand, if the "I cannot go to that island" disease that Ussop lied about long time ago is real, the reason behind Buggy getting sick before reaching Laugh Tale is clear... Anyway even without the One Piece Buggy will become Pirate King
 
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