Search for literature reviews in article databases. Use keywords related to your topic and "literature review" in quotations as an additional keyword.
Some databases provide filters to limit a search to literature reviews (log into Esearch for access):
ProQuest In "Advanced Search" under "Search Options" under "Document Type" select "Literature Review"
Science Direct In "Advanced Search" add the phrase "literature review" (in quotes) to your search terms.
PubMed On the results page after having searched for articles under "Article Types" select "Review"