Regarding other works with talking dragons, besides authors Naomi Novik and Anne McCaffrey of happy memory:

Is Ursula K. LeGuin still alive? If so, she must be ancient, God be good to her. Her series about Earthsea, with wizards and a school of magic, includes dragons, and although they talk, they are anything but domesticated.

The Wars of Light and Shadow, a series by Janny Wurts, has a fantasy universe with dragons who also communicate to humans. But only the sorcerers dare approach the dragons.