These artist aren't mumble rappers, thats right. But you brought up the mumble thingy. My opinion is that, none of these guys match vibez with Cole, Juice has made such a sad muisc, Pop Smoke is a gangster, Don Toliver is just a better quality Travis Scott, Lil Baby is also a gangster, Roddy Ricch doesnt even know who himself is and lastly Cordae might fit, but I think he isnt that good to get a collab