Liverpool are currently the top contender for the championship. I assume most people share the same opinion as me. 
They are currently the only team without a loss and winning 6 out of 6 games so far.
However it is still too early to be very confident about something of course. This is only league phase. Even the top teams not performing very well these days can start playing much more differently later on. Such as Real Madrid.
Besides I believe Barcelona also have a quite big potential here this time. Hansi Flick's system works very well in the Champions League too as far as I can see.
Yes in this round Liverpool are unbeaten and remain at the top standing firmly, we can assume that today Liverpool are indeed the strongest candidate as a challenger to the champions league to bring home the cup, Arne Slot is doing very well, but what needs to be considered from a team is the ups and downs of performance, shortcomings and weaknesses will surely be exposed over time, Therefore, the next round will be more competitive to continue step by step until the final, Real Madrid does have a chance, but they are still in doubt because they get an uncharacteristic number of defeats in the champions league, they are always a regular but this time they are like a lame horse, but it is not impossible for Real Madrid to rise quickly. They are currently the only team without a loss and winning 6 out of 6 games so far.However it is still too early to be very confident about something of course. This is only league phase. Even the top teams not performing very well these days can start playing much more differently later on. Such as Real Madrid.
Besides I believe Barcelona also have a quite big potential here this time. Hansi Flick's system works very well in the Champions League too as far as I can see.