101 FREE ONLINE JOURNAL AND RESEARCH DATABASES FOR ACADEMICS

This resource was designed to help students, academics, and researchers access the information they need without having to subscribe to an expensive service. The directories, databases, and repositories in this list are all free to use (though some require that you sign up first). We have focused on services that catalog free access and open access journals; most of the sites on the list offer at least some such resources, and the items highlighted in green offer exclusively free or open access resources. The online journal and research databases in this list are organized by discipline for ease of reference.

https://www.scribendi.com/whitepapers/101_Free_Online_Journal_and_Research_Databases_for_Academics_Free_Resource.pdf

Source: https://www.scribendi.com/academy/articles/free_online_journal_and_research_databases.en.html