From Designm.ag:

Font selection for headlines on websites can be critical to achieving the right look and drawing the proper attention with the headlines. Here is a look at more than 50 fonts that will give you some options for creating strong headlines that communicate a message. Some of these fonts you probably already have, some of them can be downloaded for free, and others can be purchased. Each font is linked to a page where it can be downloaded or purchased.

See the List