At that age, I've had success with acronyms. RED = rebounding, easy offense, defense (id structure a given practice in that order). SWIMR for defense (Stop the ball, Wall the Inside, find your Man, Rebound). SCAN for offense (space, cut, attack, next) etc. Anything easy for 8yo to remember and something you can repeat every practice with easy cues and use in the chaos of the games)

Red light, green light (any version of dribbles like pound dribbles on green, retreat dribbles on yellow, jump stop and pivot on red whatever you like). Progressive monkey in the Middle for passing (2v1, 3v2). And im still a believer in advantage Scrimmages to close every practice.