Best-Horror-Movies.com says "The following is a list of vetted websites where you can stream decent quality horror movies for free."
Death Whisperer Review: Nadech Kugimiya makes for a beefy protagonist in this horror movie that any and all thrills!
What Jennifer Did Review: Documentary navigates twists and turns of the story really well.
Anthracite Review: This Netflix thriller makes us go down several engaging roads and the twists and turns are delicious.
Some of these have some pretty good films.
Probably nothing you want to see.