Should I straighten teeth before root canal and crown placement, or after? (Photos)

Broke front tooth 15 yrs ago. Dentist applied composite filling. I've no problems except it's now whiter than the rest and has protruded. I want to first straighten then whiten my teeth. And finally apply a veneer/crown to the broken tooth. I want the least invasive approach. One dentist said (based on an x-ray) I should whiten then root canal and crown the broken tooth before straightening them (invisalign). Another said whiten and straighten my teeth before root canal and crown. Views?