I see Micah Parsons in him
Uh, hmm, NO.
First, Micah Parson is a linebacker who doesn't even rush the QB every play or at least didn't originally and finished top 15 in coverage for all linebackers as a rookie. So he's an elite pass rusher and a near elite defender in coverage.
Second, Micah Parson's is slightly bigger.
Parson's also ran a 4.39 40 yard dash.
Parson's is an elite freak of an athlete and rusher - Will is a great Cyclone and very good pass rusher but he's not Parson's.
TJ Watt is really the only modern player off the edge I'd say is in Parson's league.
Von Miller maybe but probably not at this stage of his career - prime time healthy Miller yes.
Bosa maybe? But neither of them seem to be able to stay healthy.
Mack's probably past his prime some.