Occupy the box properly. Attack the near post, the penalty spot and the back post with staggered timing so the defence cannot cover all three, and arrive as the ball does rather than waiting in position.
In the final third, a wide player drives to the byline and delivers while three attackers attack the near post, the penalty spot and the back post. Stagger the runs so they do not arrive together, and vary the delivery: near-post driven, cutback to the spot, floated to the back post. Rotate which runner takes which zone, and coach the near-post runner that his job is often to move a defender rather than score.
Whoever makes the near-post run usually does not score, and understanding that is the whole exercise. His job is to attack the front of the six-yard box hard enough that the nearest centre-back has to follow him, dragging that defender deeper and wider and opening the space at the penalty spot and back post where the goal is actually going to be scored.
Which creates a coaching problem nobody mentions. If you praise only the player who finishes, then within two weeks all three of your attackers will be making the back-post run, because that is where the credit lives. The near-post run has to be assigned as a job and named as a good action when it works, even though the highlight belongs to somebody else.
The three zones matter because a defence can cover two. Near post, penalty spot and back post is not a formation, it is an arithmetic problem set for the defenders, and it collapses the moment two attackers occupy the same space. That happens constantly and it is the thing to watch for.
Stagger the timing. Three players arriving simultaneously are easier to defend than three arriving a beat apart, because a defender tracking one has time to see the next coming. Arriving as the ball does, rather than standing in the space waiting for it, is the difference between a run and a position.
The trade-off is that committing three players to the box leaves you thin when the cross is cleared. Somebody has to be on the edge, and that is a decision made before the delivery rather than after it.
Save it to your private drills, then change the animation, adjust positions, swap equipment, or drop it into a session block. Or start from a blank pitch and build your own.