Haaland is still the player with the most goals earlier this season. 9 matches scored 9 goals. Followed by Moh Salah with 7 goals. I think Haaland will still be the favourite to be the top scorer this season.
I'm sure it's Haaland again because there's no team is rely on one striker as good as Manchester City. Salah isn't a pure striker, he share the goals with Nunez. Son is the only one striker, but they're not better than Manchester City. While Isak and Bowen are just lucky.
In the next few years, Hojlund can compete Haaland in terms of top scorer.
I think City being a great team plays a good role on this as well, Haaland is amazing but you can't put Haaland at a team like Everton and expect him to get the most goals in a season, that would not work, they do not get enough scoring possibilities.
Whereas a team like City already scores a lot, even without him, remove Haaland and they are still a good team, but when they have him, he is definitely good enough to get the balls he wants and then he can score with the passes he gets from world star teammates. In the end, he is a talented scorer, we have seen him do wonders at Dortmund before he came in here as well and last season we have seen him score easily and beat everyone in the top scorer list as well.
You have a point but this narration might not be so at all times, the presence of a single player in a club's squad at times could change everything. Many times, the issue of clubs is not the lack of good players, Chealsea is an example to point to right now, it could be psychological as no team would want to sign a nonentity. Even if they are not such seasoned players, if they are well-motivated and their morale is high, they might deliver beyond expectations. The presence of a player could actually do that. This is why I can't agree totally if a good scorer/motivator is in a club, which might change what you considered.