Haaland won't join Barcelona even if Barcelona are in good condition. Now they are in crisis and Haaland have more reasons to reject any offer from Barcelona. His style does not match with tactic in Barcelona and if he joins La Liga, he would choose Real Madrid or Atletico Madrid.
Perhaps Haaland will leave Bundesliga as well so his destination can be Premier League or La Liga. In my opinion, two best clubs for Haaland will be Real Madrid and Manchester City. Else, he can join PSG. They are top three clubs in my opinion for Haaland if he really leaves Dortmund.
Agreed. Erling Haaland's playing style is not fitting Barcelona's system. He would be a much better fit for teams like Real Madrid for example. Real Madrid have a quick attacking style which is not much different than Dortmund's. He wouldn't have too much problem on adapting to the team there I believe. Or there are other good alternatives like PSG, Manchester United and Manchester City. They all are in a better condition than Barcelona also.
I personally prefer Haaland to play in the English league if he leaves Dortmund, I think he will be able to develop more if he plays in a more competitive league like the English Premier League and Manchester City can be quite an ideal club for Haalaand in the future, PSG and Real Madrid is a rich club and can get haaland at any cost, but we know that the two team competitions are not as competitive as the English league and of course it will be a pride in the career of a football player if they can win the English league trophy in their career.