I got the best reactions from magicians with
Where it has to go - rick lax
The one I like best is the very barebones version from Dani Daortiz, where you literally just have a card selected in a nice way and shift a couple of cards around.
The best one I have seen in person I do not have a name for, I met this freak at Fantasma in New York and I thought of a card and dealt down cards from my own pack and it was there. No idea what happened everything he did was so perfect