Almost every player.
Some players are capable of playing in whatever system and still looking quality, but will obviously look better in others. Those are usually the individual, all around players who can handle themselves physically, are pacy, and are hugely talented on the ball so they can either handle high pressing teams or play with pace/slow things down and play it safe.
In the premier league, that would be players like Aguero, Sanchez, Hazard, even Martial potential wise (though he's obviously struggling right now, it's not so much due to system as other reasons). Coutinho possibly, though with him he's only managed to be consistent now with Klopp whereas before he would be great 1 game and go missing the next. Hazard was shit last season, but in the same system was the player of the year the year before. So no. Possibly De Bruyne but again, he's not quite as much an individual as those above. Players like Silva, Mata, Ozil; players who are slower/weaker and more just playmakers, those players need the system and the players around them to be right to get the best out of them, otherwise they just won't have a big impact.
