Interestingly enough Lukaku gives the ball away with a poor touch less often than Aguero, Kane or Lacazette the in form PL strikers. That might be because of a lower amount of touches overall though, not sure theres an easy way to find that out without counting game by game

Very briefly looking at the last 2 games of each player that werent against the top teams in the league, Lacazette and Kane were both from around 22 or so touches to 50 touches. Aguero more around 30 to 40. Lukaku wasnt as low as Kane or Lacazette in 1 of the matches, but neither was he up at 50 touches in either game either.