Maybe I'll agree at Real Madrid, no players who can be compared with Haaland, but Real Madrid has a reliable coach have a smart brain and I've said that too in some of my posts, this club experience in champions league is still be a threat to Manchester City and other clubs such as PSG and Barcelona. This handsome guy Haaland I think he have a good foot, but the cohesiveness and strategy of a team must also be thinking, we also don't know to extent they will stay fit. Imagine if the main player caught injured 
In any case, what real forecasts can we talk about when clubs have even played half of the matches in the Champions League group stage so far and while absolutely any outsider team, at least on paper, has the opportunity to correct the situation and go to the playoffs. Also, let's not forget that when the playoff stage comes, a lot will depend on which pairs of opposing teams will form and what the tournament grid will be as a result. Although, of course, it is impressive how Haaland fit into the Manchester City game and immediately began to demonstrate amazing performance in both Premier League and Champions League matches.