In order to get better at basketball, you need to work on your shooting and defending all the time. You don’t always need a human partner to help you out either. Take the SKLZ D-Man for instance: it is a basketball trainer that can be used to practice your arc and improve your floaters. You can use multiple D-man trainers to set up obstacles for your players to navigate around.
The D-Man defender helps you visualize the opponent. Its height is adjustable from 6.5 to 8 feet. You can find out more about it here.