As already discussed a few days ago, ManCity shows still a high interest for Haaland. According to GOAL.com Haaland is one of two options to replace Aguero.
The other option for them is Harry Kane who is still playing for the Spurs:
Erling Haaland and Harry Kane lead Manchester City's list of possible Sergio Aguero replacements, reports the BBC.
With Aguero set to depart at season's end, City could spend big on the Dortmund striker or the Spurs star to help fill the void.
Inter duo Romelu Lukaku and Lautaro Martinez could also be options for City.
At the end the came back to their pick from a few days ago, Romelu Lukaku. I think he could fit in the team too but their main pick should be still Haaland.
City has already confirmed that Aguero will leave the club after the season and Juve already showed their interest:
Sergio Aguero would be the "perfect" signing for Juventus according to club legend Franco Causio, who thinks the Manchester City striker can follow in the footsteps of Carlos Tevez.
City have confirmed that Aguero will leave Etihad Stadium at the end of the season after deciding against offering him a contract extension.
A number of possible destinations have been mooted for the Argentine, and Causio has urged Juve to make a move for the frontman because he believes Aguero can match the success that his compatriot Tevez enjoyed in Turin between 2013 and 2015.
...
“He would be perfect for Juventus. He has proved he can be useful for many clubs, provided he is 100 per cent fit,” the former Juve and Argentina winger told Gazzetta Dello Sport.
“Players are not old anymore at 32. If I were at Juventus, I would offer him a two-year deal because I am convinced he can still give a lot. He can be like Tevez, but he must be motivated and willing to win, as Tevez did.”
According to this, they are aiming with Aguero for a new Tevez who was very successful with Juve. He was one of the key players of their old team.
In my oponion this could get very interesting in the next days/weeks.
Sources: https://www.goal.com/en/news/live/transfer-news-and-rumours-live/5a6498zja1fw1nf7le3zpag8khttps://www.goal.com/en/news/aguero-like-tevez-man-city-striker-perfect-signing-for/1onrlvg1t0xv31p2ihe05idopm