Only Mihawk
Big chance Weevil too
Rest don't have it
Mark my words, there are only 20-22 CoC Users in the World at a time
Currently we have Shanks, Kaido, BM, Luffy, Zoro, Rayleigh, Sengoku, Chinjao, Doffy, Hancock, Kid, Katakuri and Yamato (13)
Dragon, Beckman and Mihawk definitely has it
So imo there are only 4-6 Users left (Not counting future ones when there will be deaths)
I believe Yasopp and Roux has it too
And Weevil most probably
So from all other Characters introduced so far, I expect only 1-3 of them already use it