Chelsea's way is technically the easiest.

There is 0 European team on their road to the finale. It's all about their playing decent against Palmeiras and Fluminense/Al-Hilal after. I think they'll reach the final.
On the bottom side of this road, I'm expecting a PSG - Real Madrid semi final match. Would be really nice to watch! Dembele and Mbappe both are back so I'm keenly waiting. I started to like Xabi Alonso's game more day by day also.