Is there a particular reason you're interested in Amazons? I only ask because what you're looking for in a bird makes a big difference in determining what breed is best for you. I don't think any of the birds with the best talking abilities (African Grey, Double Yellow Head, Blue Front, Yellow Nape, etc.) are considered good beginner birds but that doesn't mean you can't step up to the challenge if you really do your research. If you're wanting an Amazon, that's what I would highly suggest - lots and lots of research. They are complicated creatures with a ton of personality and even more energy, so you have to do your part in becoming educated in what they need to thrive.
Amazons are rather pricey - and if you want one that is known to be a good talker, typically one of the hot three, they run on average $800-$1200. Birdbreeders.com is a great site, and I would also check out Facebook marketplace, or Oodle.. you can usually find some nice older birds there.