I am entering some of my old stand by true favourites of my life and the dragon riders of Pern series is a must read for anyone who likes fantasy or dragins or has been drawn into the genre due to the proliferation of romantic fantasy reads in the past few years. 

Female author,  strong capable female protagonists a world that has been well developed over many years of writing, believable romance and truly suitable for young adult readers that doesn't try to dumb down the writing for them.  

Again, I cannot attest to modern trigger warnings as my original impressions are based on a young reader's experience in the early 80s and typically we didn't notice triggers when they were so prevalent in the culture at the time.