Finding the 4 aces (or 4 cards of the same value) is a very popular card trick with perhaps an infinite number of variations. Many of the setups are the same, so it is really just the process of making the the trick look more-or-less complex that changes, and this is only really limited by your imagination and card handling skills. This variation of the 4 aces production actively involves the spectator, so essentially the spectator finds the aces.
A spectator does all the work, you never touch the deck, and all 4 aces are found at once.
This exact method is actually my own invention that I came up with as a kid after someone showed me the simpler version at the end and I didn’t think it was deceptive enough. Though I wouldn’t be surprised if I wasn’t the first on this. – magicalmaniac77