Nico Williams:
One of the most important necessities of Barca's is an actual left winger, so in the previous Euro we all saw the great partnership of Lamine and Nico, so now we will evaluate Nico Williams' abilities. Although his finishing was not that great, his chance creating was brilliant, especially in carrying the ball progressively with his exceptional dribbling, so this year in Bilbao, he was more of a creator than a finisher, but as we saw in the previous Euro, his scoring ability can also be good.
Even his space creation and finding spaces in the pitch to create a threat for the opponents are great, as he is a left winger attached to the end of the pitch. However, he is okay with passing the ball progressively, too. So, in my opinion, we are witnessing one of the most talented wingers with Yamal and Williams after the Messi-Neymar duo, which can be dangerous, especially with their dribbling for the opponent. Thus, Barca must go for Nico and bring the Spaniard winger as soon as possible.
Dani Olmo:
The other player is Spain's star in the knockout stages of Euro, who covered Pedri's injury brilliantly. Although he is not that necessary for Barca, he can play both as a left winger and an attacking midfielder. As we all see in Euros, his finishing is awesome, and with just 430 minutes played, he became this tournament's top scorer and had a combined 5 G+A in 6 matches.
Although we expect him to have better stats in progressive passes, his chance creation is great, and he can be a great fit for Barca in the absence of Pedri with his long-term injuries and will give us great squad depth.
Olmo's ball-carrying, especially into the final third of the pitch, is brilliant, and nowadays, he is the kind of player that every club wishes to have. Although he was one of us and graduated from La Masia, Bartomeu's incompetence caused all these talented players, like Olmo, Simons, or even Cucurella, to leave the club. As it's reported, we need one or two significant sales to buy Dani Olmo.
At all times, both of these players can be a great tool for Hansi Flick through his lead, and Barca should go for both of them, but if it's not possible because of our financial problems, data says that Dani Olmo is a better option. Having played for Barca before, he knows the environment, but it seems Barca is close to signing Nico Williams, and we have to wait to see what will happen in the upcoming weeks.