Dragonflight by Anne McCaffrey is $1.99 at Kobo, eBooks.com, and Amazon. It's a book in the Dragon Riders of Pern series. It is the first written book in the series.
On a beautiful world called Pern, Lessa is an outcast survivor—her parents murdered, her birthright stolen—a fierce young woman who has never stopped dreaming of revenge. That is, until an ambitious young dragonrider, F’lar, offers her something even greater: the chance to lead Pern at his side by Impressing a golden dragon with whom she will share a telepathic bond more intimate than any human connection. Although there is also her intense relationship with F’lar himself.
Kobo:
https://www.kobo.com/us/en/ebook/dragonflight
eBooks.com:
https://www.ebooks.com/en-us/book/191912
Amazon:
https://www.amazon.com/dp/B000FBFOCI