Good Spirits by B.K. Borison
Every year in December, Christmas books—especially Christmas romances—take over the Goodreads Most Read list. This year, the most popular holiday title is Good Spirits, but you can find a dozen more Christmas reads on the top 50. This one follows Nolan, aka the Ghost of Christmas Past, as he takes on a new assignment, haunting Harriet. But people-pleasing Harriet is no Scrooge, so why is she being haunted? As Christmas Eve approaches, the two begin to fall for each other. It was read by 16,000 Goodreads users this week and has a 4.0 average rating.