Out of that list, the name that sticks out as never going to reach beyond his current standing is Valiev, who is at this point probably an average AHL defenseman and with other options available, I don't see him sniffing the NHL again through Toronto.
Everyone else on the list probably can still sniff the NHL (if they aren't already there), even though I doubt more than 5 of the players listed below #8 are full-time NHLers during their career. (Some others will get call-ups, but will not be everyday players. Some of the wingers probably won't get a sniff of the Maple Leafs, but on teams with less winger depth they may see it down the road)
Anyways, my ranking:
Auston Matthews
William Nylander
Mitch Marner
Morgan Rielly
Timothy Liljegren
Kasperi Kapanen
Connor Brown
Connor Carrick
Carl Grundstrom
Travis Dermott
Adam Brooks
Josh Leivo
Andreas Borgman
Miro Aaltonen
Nikita Soshnikov
Jeremy Bracco
Joseph Woll
Kerby Rychel
Calle Rosen
Andreas Johnsson
Andrew Nielsen
Garret Sparks
Yegor Korshkov
Eemeli Rasanen
Dmytro Timashov