Barcelona will be able to advances to the round of 16 and i am sure about that but the question is how far Xavi will be able to bringing this team because we all know previously Barcelona can't talk more on European competitions even on season 2022 at Europa league Barcelona have to eleminate on quarterfinal and at that time Barcelona status as the favourite but unfortunately they were lose from Frankfurt
I'm also sure of that, historically Barcelona has never disappointed in the UCL group phase, what is their new challenge with the current squad is about how they can survive in the elimination round. With what they went through last season, Xavi must already know what their problem is and we will most likely not see another chaotic performance from Barcelona this season in the UCL.
However second team who possibly will qualified is Porto and last season Porto can able advances to round of 16 with finish at first place on group stage and now i think they have good chances to repeat their achievement again because on the paper Royal Antwerp and Shakhtar Donetsk quality is below to them
Never underestimate Shakhtar Donetsk, they can even hold Porto to a draw in their last 2 meetings. Shakhtar still has a big chance in group H, who has no chance at all I think is only Royal Antwerp.