dips, push ups, pull ups, squats, lunges, sit ups, burpees,

any more calisthenics/isotonic essential for boxing?

wb cheers!

Cleans, Deadlifts, Glute Ham Raise, Row, maybe front Squats if you want to switch things up. Also for a boxer I'd do Box Squats. They are bit easier to learn and for an athlete they are better anyway