One of the best places to start a literature review is just by typing your independent and dependent variable into Google Scholar and see what comes up. In fact, you can learn a great deal about any topic by reading a lot of abstracts quickly. This will also help you to determine which articles you may wish to read more closely. A neat trick is to find the most recent article on a topic and read their literature review too. Below are some helpful links for this process and the library has a lot of resources to help you that I strongly encourage seeking out. The MSCJ Program Library Guide (linked below) in particular provides a lot of supplemental resources and guidance here that you should look into.