I just want to make a little prediction that in the 1st leg PSG will win by a narrow score and Real Sociedad will win in the 2nd leg. the reason I say this is because away or home matches are very influential and these two teams will be very strong at their respective home grounds but to speculate who will qualify, it looks like PSG will qualify but there is no guarantee because as I said before, PSG defense is a little weak and often concedes goals.
The match will be held in about 1.5 months, so it's still quite a long time, so it is very likely that both teams will make serious preparations to maintain their participation in the Champions League by being able to enter the quarter-finals, but in the next 1.5 months both teams will have many matches in Domestically, they will be able to make changes to the line-up later because something unexpected happens, for example a player gets injured, so all preparations are a little disrupted.
My prediction is that PSG will try to win the first leg match with a goal difference of no less than two, and the second leg will still try to win but a draw will be enough to take them to the quarter-finals. Sociedad's productivity and defense are not as good as PSG's, so PSG's chances of winning are very wide open compared to Sociedad.
If we compare PSG with Real Sociedad team then PSG team is considered stronger. We are seeing a good performance from the Real Sociedad team in the Champions League. However, the performance of this team in La League is quite erratic. They have won 8 out of 18 matches and are sixth in the points table. However, Real Sociedad has a strong defense.
PSG's performance has improved since Luis Enrique became coach. This team is strong now. However, the team still relies heavily on Mbappe to score. Luis Enrique has to gradually reduce this dependency. Otherwise, PSG will face big problems if Mbappe leaves the team. At the same time, Enrique should add another experienced striker to the squad in the winter transfer. Then their performance in the Champions League will be stronger.