Hi. I'm still working on the Ghosts of Summer, book 3 in the Summer Screams series. One of the stories, The Fourth of July Shambles, is about zombies. There are also friendly and guardian spirits in this one. I've never done that before. So check out the series, with the first two books on kindleunlimited.

https://www.amazon.com/Summer-Night-Screams-Mysterious-Horror-ebook/dp/B0FDYYY1RW