Let me make a suggestion on a good place to start...
http://popvinyls.com/funko-pop-vinyls-series/funko-pop-movies-series/
They have different series: Television, Heroes (which is mainly DC Comics), Marvel, etc. For people like us, I would suggest starting with the "Movies" series. It's one of their biggest lines and there is plenty of variation in that line that they are bound to have something for everyone. With the above link, you can see the entire series which includes ALL variants & exclusives, along with the "normal" releases. One of the themes they have within the movie series is "horror", which includes everything from Leatherface/Freddy Kruger to Alien/Predator to Pennywise/Billy (From Saw) and MANY MORE!!! Also, if you have any questions, feel free to PM me or you can just post your question(s) in the "Funko Chat" thread and one of us POP! Heads will be happy to answer you.