Shot to the ribs.
Push a finger into the depression at the base of the neck, in and down.
Judo slam to ground.
Shomenuchi to neck.
Poke the eyes.
Sweep to the knees.
Drop your body weight and do something Aiki?
A whole host of pressure points that numb, or incapacitate.
I could go on for twenty or thiry more techniques ....
It really depends on how the choke is being applied and the openings available.