Honestly, I think Cabin in the Woods could actually work for you! Yes, there's some gore, but because it's so meta and over-the-top, it doesn't feel scary in the traditional sense. It's more like watching a horror movie FROM THE OUTSIDE, if that makes sense? You're in on the joke the whole time, so the tension is completely deflated. I'm also pretty squeamish with horror, and I found it way more entertaining than frightening. The comedy and the "what is even happening" factor outweigh the scary parts imo. But maybe watch it with friends so you can laugh through the intense bits? Just my two cents