Several top teams have similar percentages, such as Manchester City and Liverpool, and they shouldn't be underestimated. However, I'd like to emphasize that defending the Champions League title isn't easy, so I'm slightly ruling out PSG this season.
Real Madrid is also a bit questionable, as their early season performance hasn't been impressive. So, I have little doubt that they'll be a fierce contender in this season's Champions League.
So what about Barcelona chances? Or are you leaning towards Liverpool and Manchester City, who were clear favorites last season but were suddenly eliminated? It might be better to wait for all the top teams to appear, as it's too early to speculate let alone doubt last season champions.
The only team I can boost of that can lift the champions League trophy this season is Barcelona because right now Barcelona is very much inform and are playing very well I don't think there's any club that can change Barcelona right now, however just like you said is too early to start point out clubs that will win the champions League title because a team that is informed now may not be informed towards the end of the season so let us watch and see how it goes, I'm very sure last season no one believe that PSG will be the one to lift the champions League title after the match between Inter Milan and Barca people thought Inter Milan won Barcelona they will be the one to lift the champions League title or trophy but they did not so until the final match and the conclusion of the final match no one can be 100% sure of a team that we lift a premier League title.