Use Ulrichsweb to identify and learn about journals to publish in. Includes where the journal is indexed and whether it is peer reviewed.

Use this database to find impact factors and other statistical measures for over 7,000 journals in science and the social sciences.

Beall's List was taken down on January 15, 2017, but here is the Jan 11, 2017 version from Internet Archive. Beall tracked potential predatory open access journals and publishers.

Search the "Sources" section of Scopus for CiteScore metrics.