Am very certain Bayern would win the second leg, with even more than just 2 goals and I would endeavor to place a bet and hope to cash out, really.
Their reputation in the champions league precedes them and that's why am very confident in their win.
As for the match between PSG and Real Sociodad on same night, I would like to bet on PSG too, as their opponent has had it worse this season in their domestic league and even lost the first leg match without a single recorded goal.
Be careful not to be too sure and end up loosing your money on a team that isn't given such assurance especially in recent times that they have not been able to show good performance both in their domestic league and the champions league, you should consider that it's very possible that there would be lot of goals and as such it will be safer to bet on goals than to place your bet solely depending on the fact that you feel that Bayern Munich will be able to win and at the end of the day then you will be disappointed by the results you are seeing but than if it's enough that you are risking that which you can afford to loose without. Becoming emotional than you can give it such trials but know that there's certainties in football as anything can happen but you will be safe if the amount isn't such that will be difficult to loose.
Don't gamble much more than that which you know isn't convenient for you to loose all t a time because most of the game that looks very promising like this especially when a weak team is facing a rough team, most persons expets the rough team to win but they end in a draw or sometime loss mot most cases win so keeping your options to accommodate most of the situations remains best.