On Trading view I couldn't find an Imbalance finder so I created this script
It basically takes candles 1,2 and 3 and if an area on candle 2 is left in imbalance it marks it up in a blue rectangle For the last 50 bars only
It marks all bars with imbalance with a little diamond - if you cant manually see where the imbalance is on these bars - use the replay tool just a couple of bars after the one you want top investigate and it will highlight the imbalance for you as it replays :-)