The likes of Chelsea quartet David Luiz, Ramires, Willian and Oscar, along with Barcelona's Neymar, are all reportedly already on Scolari's list.
However, with Scolari due to name his squad for the tournament on 7th May, he is still assessing candidates to represent the hosts.
"We have selected 23 players, I still have to determine two players," Scolari told TV Globo.
"We are scouring, watching. This one is younger, that one has more international experience, that other one will feel the pressure a bit more."
When asked if anyone is irreplaceable, Scolari replied: "Nobody is, if there isn't one option, there is another one."
Brazil open the tournament against Croatia on Thursday 12th June and also face Mexico and Cameroon in Group A, and Scolari has great confidence in his team, saying: "The cup is ours.
"We have all the conditions to be the champions, in both the football aspect and because it's always good to play at home, it's like having an extra player.
"Nobody accepts second place, so why am I going to talk about being in second place?"