I hope it's okay that I'm sharing several of my recommendations with you! Great idea for a topic, by the way!
Sleep Tight by Anthea West is a FANTASTIC horror anthology. I cannot recommend it enough! It's one of those that can turn people who think they don't like horror into fans of the horror genre.
I also want to recommend Household Slime Mold by Nessie Flynn, another fantastic comic that I LOVE! The characters are great, the art and colors are beautiful, the backgrounds have a very atmospheric feel to them, and the story never gets boring. Plus, it has a lot of humor!
A Book For Monsters by sorrelma is another one with gorgeous art and great characters, and a lot of humor. I once joked with the creator of the comic about how I wanted to go for a walk in her comic and skip happily as I took in all the scenery. One look at A Book For Monsters, and you will most likely want to skip too!
Words cannot express how much I adore Shiloh by [RED] and ★flynn. I love it so much!!! If I describe it, I will end up gushing over it for several paragraphs, so please, check it out for yourself! 
The Shadow Savior by Book is about a detective-in-training who has to solve a series of murders. There aren't a lot of episodes yet, but it's intriguing so far and has really cool black-and-white artwork.
If you're in the mood for a comic with unique art and a Halloween-vibe, you should check out The World By Batsy Monroe!
