For now as it stands I think the FA cup is the best chance at any trophy Manchester city have for themselves this season because aside from that they have all been cornered out of every competition which includes even the premier league which clearly shows how they have been affected by the balloon d'Or winner. Also I believe their chances with the FA cup is highly seeing the teams that are remaining in the competition plus the international space would have had a positive effect on them.
Because indeed for now the FA Cup is the only trophy they can still win especially by looking at the semi-final clubs for now where there are Nottingham Forrest, Crystal Palace and Aston Villa then obviously they are the favorites for now.
But even so this still won't be easy for Mancehster City even though they are favorites but still for the semi-finals their opponents are quite troublesome. Nottingham Forrest although for now they are also quite feeling the difficulty of getting out of the pressure they have because they have to try to maintain their position in the current EPL standings but still they are also not opponents that can be underestimated later for Mancehster City.
Especially when looking at their problems that still can't seem to get out of their zone where the finishing problem is still difficult to solve for Pep and the defense that still has gaps, of course the semi-finals can be difficult for Mancehster City.