I believe that Harry Kane has a really big role in Bayern Munich's being shown as the second biggest favourite for the Champions League title by bookmakers.
It cannot be denied that Kane has had a big influence on the progress and strength of Bayern Munich since his arrival. He has made impressive contributions. And in the end, Bayern is indeed the club that is quite the favorite in the UCL this time. Moreover, later they will meet Lazio, where Bayern Munich should be above them. so Bayern's chances of qualifying for the next round should be greater.
Basically Barcelona still has a chance to win against Napoli in the last 16 but ya, even though Barcelona has a chance to win but I personally cannot consider the results they got in the group phase . Because anyway, I think the opponents Barcelona faced in the group phase were also easy because ya, at least Barcelona still has better quality than Shakhtar and Porto as you mentioned.
This will be one of the most challenging competitions in the 16th century. Barcelona vs Napoli. Both of them have not been at their best this season due to several problems occurring within their clubs. But at least, they are strong enough for each other, so they still have a chance. It's quite difficult to predict, but it's possible that Barcelona will come out on top if you look at how prepared the club is so far. Moreover, Napoli is having basic problems, especially those related to their coaching,