3v1 and 4v1 rondos. The player with the ball always has two passing options available. The player in the middle tries to win the ball, and the player who loses the ball/makes a poor pass goes in the middle. Rules can be added, such as one-touch only, mandatory two touches, etc.
Quality factors
Open passing lanes
Player without the ball also blocks passing lanes during pressing
Activity when without possession
Key questions
How do I move to be available for a pass?
Do I stay active all the time?