Several outlets have published lists of highly recommended horror movies, with some focusing on specific time periods, such as the 21st century or the last 40 years. The number of movies included in these lists varies, ranging from 8 to over 100, and some lists highlight specific streaming platforms where the movies can be found. The lists appear to be intended to help readers discover new horror movies to watch, with some outlets providing rankings or emphasizing the scariest or most terrifying films.