Players are lined up in 2 lines near half way. 2 balls in rotation.
Player from one line runs out to receive a bounce pass from opposing line, players take a shot.
You could start the lines closer to hoop and change up the type of pass i.e. chest, bounce, overhead.
Rebounding is the least glamorous thing in basketball and one of the most decisive. It is also almost entirely a habit, which means it is entirely coachable.
Good spacing is only the start. The best modern offences teach players to attack the defence's rotations and play in a permanent 4-on-3 - here is how to coach that read.
The ball screen produces almost half of all professional offensive possessions, yet most teams still teach it as a memorised play. The modern approach trains the read - giving players a framework to decide based on what the defence does, not what the coach called.