Because a traditional or narrative literature review is so often a part of a thesis or dissertation, it's good to look at dissertations to find examples of literature reviews. The following links will take you to dissertations with literature reviews; check the tables of contents to find the literature reviews within the dissertations. They're usually the second chapter of the dissertation.
Coleman, B. N. (2015). The association between electronic cigarette use and cigarette smoking behavior among young adults in the United States (Publication no. 3712206). University of Maryland, College Park. ProQuest Dissertations Publishing.