You can access scholarly or peer-reviewed articles through the Library's databases. By selecting "Peer Reviewed" and "Journal articles" your search results will only provide peer-reviewed journal articles. Or select "Scholarly & Peer-Reviewed" to generate a larger range of scholarly sources.
You can limit your searches to peer reviewed and scholarly articles in many of the Library's individual databases, too.
EBSCO and ProQuest each have a peer reviewed option below the search box
Other databases, like PsycARTICLES and ScienceDirect automatically search only peer-reviewed journals so all you have to do is start searching.