I've looking into the Annales School and World Systems Theory. Neither are specifically socialist, but they seem more materialist than some other schools of history.

The Annales school (French pronunciation: ​[a'nal]) is a group of historians associated with a style of historiography developed by French historians in the 20th century to stress long-term social history. It is named after its scholarly journal Annales d'histoire économique et sociale, which remains the main source of scholarship, along with many books and monographs.[1] The school has been highly influential in setting the agenda for historiography in France and numerous other countries, especially regarding the use of social scientific methods by historians, emphasizing social and economic rather than political or diplomatic themes.

World-systems theory (also known as world-systems analysis or the world-systems perspective)[1] is a multidisciplinary, macro-scale approach to world history and social change which emphasizes the world-system (and not nation states) as the primary (but not exclusive) unit of social analysis.

Right now I'm reading Fernand Braudel's Civilization and Capitalism, 15th-18th Century trilogy and Giovanni Arrighi's The Long Twentieth Century.