Since this vehicle has anti-theft, here is what I suggest: Have a cheap key made by a locksmith so you can turn the ignition lock cylinder. If you try breaking it to turn, it could damage other components and lead to more problems.
I attached the directions below explaining how to replace the ignition switch. If it was the lock cylinder that needs to be replaced, let me know.
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.