Here is a list of publications that accept manuscripts from the Social Sciences and related fields. You may also want to search the General publications list.
Columbia University Journal of Politics & Society
An interdisciplinary journal of undergraduate scholarship in the social sciences
Journal of Integrated Social Sciences
Provides a platform that helps to fill the void of a unified approach in the social sciences.
Learning & Teaching (LATISS)
A peer-reviewed journal that uses the social sciences to reflect critically on learning and teaching in the changing context of higher education.