To find companions, handbooks, or bibliographies you can search library search or your topic and (handbook OR encyclopedia).
You can also try searching the portals to these resources below.
Oxford Bibliographies, annotated bibliographies that provide a gateway to research in particular subfields.
Cambridge Companions, guides to various topics.
Routledge Handbooks, book-length companions to various topics.
Oxford Handbooks, reviews of scholarly literature.
Annual Reviews Online, reviews of scholarly literature in the sciences and social sciences.
US History - https://guides.libraries.emory.edu/main/united-states-history
LatinX Studies - https://guides.libraries.emory.edu/c.php?g=891442
Native American & Indigenous Studies - https://guides.libraries.emory.edu/c.php?g=334874
Asian American Studies - https://guides.libraries.emory.edu/AsianAmericanStudies
African American Studies - https://guides.libraries.emory.edu/main/african-american-studies,
Newspapers - https://guides.libraries.emory.edu/main/united-states-newspapers
Note: Other libraries provide guidance for researching non-US family lineages. To find these search [Country Name] AND (“Family history” OR Genealogy) AND Libguide
Here are some examples:
China: https://aclibrary.org/news/new-genealogy-eresource-my-china-roots/
Pakistan: https://www.familysearch.org/en/wiki/Pakistan_Genealogy