Why not? They just beat City convincingly and won CL. They have a good manager too and they are by far biggest spender in market last summer. At least they are more attractive place than us, we can’t even win Europa league and have been 4 years without a trophy, remember?
Let’s see what’s is his other options:
City - most obvious choice. But biggest obstacle is Pep, Haaland may not match his style, while Pep may not want to deal with Raiola as they hate each other.
Barca - they are nearly broke and clearly past their best
Real - they don’t have the spare money, as their main target remains Mbappe, where they are struggling to raise enough money anyway.
Man Utd - 4 years without a trophy, his father’s leg was deliberately broke by a United legend.
Juventus - maybe bought as replacement for Ronaldo? As Riaola has good relationship with them. But can they afford him?
PSG - maybe bought as replacement for Mbappe? But would Haaland wants to go there, moving from top 4 league to top 5 at this important stage of his career? As his next move would set important path for his career.
Liverpool - looks like a perfect fit but would they spend big on him?
Bayern - most logical choice IMO, one of strongest team in Europe, guarantee trophy every year, chance to challenge for CL, playing in a league he is familiar with. But they already had Lewandoski, who is currently even better than him.
Then let’s look at Chelsea
Chelsea - they are current champions of Europe, they have oil money to spend, they have good manager, and many top young teammates, and those coming from BL too. PL is currently also the best league in the world.
I would say Chelsea would be among top 3 most likely place he would go to if he wants to move this summer.