If Real Madrid advance, who is the most likely next opponent?

Real Madrid scored an away goal. If Real Madrid 1-0 Juventus and Real Madrid qualify in the second round, if Real Madrid 2- 1 Juventus, the two sides play overtime, which is also an away goal. If Juventus scores in extra time and Real Madrid equalizes, then Real Madrid will be eliminated. If you don't score 0-0 in overtime, there will be a penalty shootout.