One specific genre that is used frequently by historians and is created for researchers is an archival finding aid. Finding aids help researchers use an archival collection by giving an overview of the kinds of documents it contains, providing historical context, and indicating where the materials came from (provenance). This genre helps historians find the information sources they need to study the past.
Historians often publish their work as books. This book, a biography of Alexander Hamilton by Ron Chernow, inspired the musical Hamilton by Lin Manuel Miranda