for rear delts:

reverse pec deck (machine)

seated rear dumbbell raises (sitting on a bench, bend your waist so your chest is almost touching your thighs, arms hanging to your sides. raise the dumbbells upwards in an arch, like a flye)

standing bent over rear raises (standing, bend at the waist until your upper body is parallel to the ground, raise your arms out to your sides in an arch)
*you can do this same movement on an incline bench, like you mentioned, or with cables*

standing cable rear-laterals (taking the high cables in opposite hands (right hand grabs left cable, left hand grabs right cable) hold your arms slightly above face level, and pull the pulleys backwards in a flye motion, takes time to master, but once its been figured out, its a great burner for the rear delts)

wide-grip bent-over rows (bend at the waist whilst standing, so your upper body is paraellel to the ground. take a very, very wide grip on a light barbell, and row upwards into your middle chest. unorthadox, but works for sure. maybe superset with some form of rear lateral raise)