I'd rather scrap VAR, but I've always liked the idea of a player being offside only if he's in the penalty box. I know you would have to tweak the rules to suit.
As it stands now, referees and the VAR lot should be obliged to come out and explain their interpretation, such as how Rashford wasn't interfering with play when he was clearly shielding the ball right up to the point that Fernandez hit it. It wouldn't change the decision but it might at least make them think a bit harder if they had to come out and justify it. But it needs to be simplified so that it's not open to interpretation.