My worst bite came from a cockatiel I named Rosie. I then gave her the nickname of Pit Bull. That girl went after chunks not just bites and would not let go. This was normal for her to do. I fostered one named Curley for 3 years while his Momma got her life straight. When I sent Curley home Rosie went with him. Solved my problem.
The worst I got from an Amazon was from Myrtle my 1 year old BF. The vet had her in a towel and on her back. She clamped down on my index finger and used me as leverage to get out of the towel. She did not break skin and was really not biting just getting help. When she let go my finger was reshaped but the skin not broken. My finger turned blue. She was not trying to hurt me just get help.
If you are afraid of a bite you don't need a bird. Your fear will be known and used against you. The smaller the bird the sharper the beak. Maybe you should adopt a cat from the animal shelter.
My Calicat learned to say Momma, no, out and milk and knew what she was saying.