It is very appropriate for Barcelona to bring Nico William into their squad.
And apart from wanting to bring in Nico, there are rumors that Laporta also wants Dani Olmo. I also slightly think that this is impossible.
Dani Olmo played well for Spain in the previous Euro in 2021 but he did not move to a bigger club after that. In Euro 2024, Olmo lost his position as a main player in Euro 2020 to a substitution but the serious injury of Pedri gave Olmo a great chance. He did not waste it and became a key player to help Spain win the Euro 2024 trophy.
Olmo will receive more offers after this successful Euro 2024, same as Nico will have. Wanting these rising star players is like too much for Barcelona with very poor finance recent years. They can have both Nico and Olmo by expensive cost but it does not guarantee they will win La Liga or Champions League or both titles. This mean they are going to make big bets by spending very big budget that is even not in their own pocket, to hope that these new star players can help them winning trophies in a new season.
Chances for Barcelona are small because many big clubs have their eyes on these players and have better financial capacity than Barcelona too.