ComicCraft has 50% sale across all their quality (if rather expensive) commercial-use comic-books fonts, until 31st July. There are a dozen or so horror-comics fonts there, as well as some pulpy retro styles and some suited to adventure-hero comics.

The Blambot store is your rather more affordable alternative, and their sale is usually 30% off from ‘Cyber Monday’. You can also hire Blambot to create a custom comic-book font.