Reviewing hands is important, but focusing on big pots make more sense, when you play cash games rather than tournament. In tournaments big pots tend to mostly be those, that happened deep in the tournament, when blinds had gone up, and these hands are not always the most important. Like maybe your last hand was AQ, which you jammed all-in preflop for 12BB, and then someone called you with 99 and won. This hand cost you a lot of chips and ended your tournament, but there is nothing at all to learn from it.
If you are serious enough to collect your hands in a tracker and analyse big pots after sessions, I strongly recommend, that you make a deposit and play 2NL cash games. I began with a $100 deposit, and it was only a few month, before I was already playing 10NL with a $250-300
bankroll. Then after getting a bit stuck there and finding it difficult to find good 25NL tables, I eventually moved to tournaments.
Today I play a lot of SnGs, because I only have time for slow MTTs in weekends, and I dont want to go back to cash games. The way, I review hands from SnGs, is mostly by importing all the hands into ICMizer and then let the program look for mistakes in push/fold situations (less than 20BB effective). I hardly ever review postflop play, which is surely not ideal, but its a question of prioritizing my time. Occationally I replay an entire tournament in PT4 and look at all the hands, that are not trivial, like folding junk preflop.
If I was to try to move up to midstakes MTTs, and especially those with slow blinds, then postflop play would be my next focus point, and I would need to purchase a solver to analyse situations in a more objective way than just looking at my own hands. This is fine as a first step, but it does not help you find situations, where maybe you are making the same small mistake over and over again without realising it. Like maybe you are C-betting certain flops to much, and when a good player check-raise you, and you need to fold, you are actually getting exploited.