Unpopular opinion: most top 500 one tricks are better at their heroes than OWL professionals. Owl professionals are better at the game, and coordination. But specialists will always outperform people who divert resources to other aspects of the game.
Dva : Fury/Void
Orisa : Gesture/Smurf
Rein : Super
Roadhog : Jjanu
Sigma : Choihyobin
Winston : Miro
Ball : Ameng
Zarya : Sinatraa
Ashe : Carpe
Bastion : Basti0nmain
Doomfist : Erster at his peak with the reign
Echo : Rascal
Genji : Haksal, Sparkle, Shadowburn
Hanzo : Profit/Birdring
Junk : Jakerat
McCree : Xzi/Striker/Taimou (yes i support the fuel)
Mei : Rascal/Doha
Pharah : Shadowburn
Reaper : Birdring/Striker
Soldier : Dafran or peak aKm
Sombra : LIP, or doha
Sym : Stevooo, no pros play her
Torb : Dafran or KSF/Carpe
Tracer : Decay/Striker/Saebyolbe
Widow : Diem
Ana : Ryujehong, Twilight
Bap : Viol2t
Brig : Any player on a good goats or double shield team
Lucio : FunnyAstro or Leejaegon, they’re both THAT good with him
Mercy : Moth
Moira : I know MCD plays her a lot but he’s unproven
Zen : Jjonak/Viol2t
OWL and regular comp are different things. Also Danteh played way more than SBB at Sombra. Peak Striker was very good mostly to finish off what their team was doing, as a solo Ranked/OWL player SBB has more numbers.