[Theory] What other people do you think possess CoC Haki?

[Naruto D Luffy]

I think..
Zoro has it
Rob Lucci Has it
Akainu has it
Coby has it
Mihawk has it

And you?

Marco after timeskip
Jozu after timeskip

 

[ziggyZ]

Marco after timeskip
Jozu after timeskip

Those two aren't getting any stronger. And you can't get CoSK you have to unlock it and if they were to ever unlock it, they would've way before MF.