The Queen of Songs isn’t quite what they were expecting.
The Broken Queen (Court of the Last Dragon, Book 1) by Lidiya Foxglove: Harrai is the dragon king, king of the Miralem people, who are all telepathic. The royal family of the Miralem ride dragons who are also telepathic, and the king is part dragon. He has been king since his parents died when he was a child, and for years only reluctantly filled that role, purely out of a sense of duty. There is some dark mystery surrounding his parents’ deaths. Now, he cannot marry until he finds the reincarnation of a prior queen, the Queen of Songs. It is she who will become his wife and bear his heirs.