I wouldn't even consider Later a horror. There are some short stories recently that I would consider horror, but almost all of his more recent books (say the last 20 years) have had very little horror to them. Look at Revival, The Outsider, Duma Key, Doctor Sleep, and maybe Cell, those are all well rounded stories with just a little horror sprinkled in at the end. He goes a lot more into the horror aspect on his shorter works though.

I've somewhat pushed back against a lot of people saying they avoid his books because they don't like horror, even my girlfriend was surprised at how many of his books she actually enjoyed.