One really good game which let's everyone work on dribbling at the same time is ball tag. On a small field, let the entire team go after one person and try to tag his ball with their ball. The target player has their hands full just dribbling around the square avoiding all the shots at his ball. Whoever gets his ball with their ball becomes the new target. The kids love it and really learn to keep it close and still keep their head up.
Next we play the Get it First game. In this one, we'll have two lines of players on either side of the coach. The coach will toss the ball up so it gets some good bounces. The first player in each line will try to be the first player to get the ball. Once they win the ball, they try to score at the opposite end of the field with the other player defending. While those two are busy, the coach can toss another ball and let the next two go at it. Emphasis here is on running through the ball while it's bouncing; it won't work if they stop and try and settle it. After that, they need to dribble and shoot under strong pressure from the other player.
After that, we may play the Star Wars game where you set up a couple of smaller boxes with a shared edge and set a defender in each box. The other players try to dribble through each box (going from one end of the rectangle to the other) without letting the defender kick the ball out. If the defender does get it, they retrieve their ball and try again immediately. If they make it, they count a goal and try again immediately.
I'm thinking we can't get enough of these games.