Web of Science (WOS)
Don't be misled by "science" in the title. WOS also covers the humanities and social sciences. On the left, under Refine Results, Select REVIEWS under Document Types. This is a limit for literature reviews or overview articles. THis may not get all lit reviews. Consider also searching the TS field (Title, Abstract, Author Keyword, Keywords Plus®) with meta-analysis, metaanalysis, synthesis, overview.