A highly rated series by Karen Kelley are the contemporary paranormal Planet Nerak books, featuring futuristic, fantasy, aliens and humor tropes. A second highly rated series are the contemporary fantasy Princes of Symtaria novels, tagged as paranormal and futuristic. The highest rated books by Karen Kelley are Branded: Savannah: Sisters Bound By Blood, Earth Guys Are Easy, The Jaguar Prince: A Shapeshifter Romance and Unleash the Passion. Her latest book is Not My Type: Matchmaker Series Book Two, An Enemies to Lovers Romantic Comedy which was published in 2021.
If you want know where to start with Karen Kelley's output, we would recommend Close Encounters of the Sexy Kind (Planet Nerak #1) and The Jaguar Prince (Princes of Symtaria #1).