The following databases will be the most useful for research on Valmiki's Ramayana and the Ramayana tradition:

• ATLA Religion Database with ATLASerials Plus
• Bibliography of Asian Studies
• Religion Database
• Humanities Source Ultimate
• Periodicals Index Online

You can find links to all of the above on the Religious Studies databases page. Note that Bibliography of Asian Studies is in the second list on the page, under the heading "More Specifically".