If you can learn from first-hand experience, that is far superior to books. Books are not ideal for a variety of reasons... If you rely on books primarily, you will be missing a lot of important stuff. Make sure you read about the good, the bad and the ugly--- make sure you seek out owners who have these parrots who are not trying to sell you something and whose birds have reached sexual maturity-- this is important for getting any parrot. If there is a rescue near you, try to spend a lot of time there to get an idea--- remembering that a bird in a rescue may actually be quieter than a bird in a home (due to all of the constant activity and noise already in a rescue). You can't judge temperament based on a baby..and each bird will have its own personality, however, there are certain tendencies that are stereotypes for a reason across certain species.
Parrots should not be cuddled. Even if they like it--- if you are dealing with a bird that is weaned and eating on its own, head and neck petting only (except touching needed for medical reasons). SO, don't get a parrot if cuddles matter, because while some will become obsessed with "cuddles" it is sexual and can lead to self-destruction, screaming, aggression and confused relationships etc.