The CL quarter final Man City - Tottenham on April 17 was "fun". City thought they scored a match winning 5-3 in injury time, which was determined to be offsides after a couple of minutes and then the game was over.
Or at least if they're going to use VAR, stop the clock as soon as an event has happened. Determine if it needs to be reviewed, wait to make the call and then go on. The technology should be there to help the referee, not to overrule him.