Haaland is still in his best of form till date and his inclusion in most games have really helped Manchester City win many matches through his efforts directly or indirectly. He either creates a chance for the team to score or he scores the ball him self. Without any much research, I can guarantee that he's the highest goal scorer in the team right now.
Manchester City is at its 4th position right now in the table standing but their relatively poor performance have bit really suggested that they might never win the top place of the table with Liverpool currently leading with a landslide point of 67 , 20 points ahead of the Manchester City team. It's a lot of gap to fill and that cannot be done when the club's have all played 27 matches already and are looking forward to only a few matches left to the finish.
I argue with a guy last season that Haaland is a loner player that can't do alone unless he gets support and assist from other players and they were all that Haaland is a maker in football playing and fast forwarded to this season, his team are no longer delivering as it used to be like the last few season, any time they doesn't give him the assist necessary, there wouldn't be a goal for that match unless when he is so serious to score 1 else there must be an assist.
Manchester City can only try but they wouldn't be able to win the league, there is no two ways about it but they can sustain the rest of the matches to maintain the top of the table. If watch their last game with Tottenham, they were having everything on their hands but must of the opportunities they had, it was wasted and at some time in the game, I was thinking Tottenham might come back to equalized that goal and probably add more goals but they couldn't but Manchester City is still bad in my book.