Vlahovic has not really stepped up at Juve.Not necessarily mate, the club know 100% if/when Kane leaves they need to do something serious to appease the fans so I would highly expect the likes of Muani/Vlahovic to come in very quickly following his departure. I know we have spoken to Frankfurt & Juventus about both players.
I know little about Muani but his goalscoring record is not particularly impressive. Others seem quite happy with this link so must have something about him.