You can jumpstart your lit review by finding lit reviews on similar topics that have already been written.
Tip: Use Thesaurus or Index to indentify useful terms for searching.
Tip: Use proximity searching to catch variations.
E.g., literature near/3 review (ProQuest)
The work of doctoral students, dissertations may never be published in book form, but they can be rich resources. They invariably include a lit review as a chapter, and often have extensive bibliographies.
The Annual Reviews series of journals are entirely composed of extensive lit reviews.
Trace citations backward and forward in time to see the reception of ideas