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

Look in Cabell's for more information about journals: acceptance rates, altmetrics, submission requirements, and more.

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

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

The original Beall's List was taken down on January 15, 2017, but here is a site kept by an anonymous researcher to maintain Beall's work. Jeffrey Beall's attempts to identify potential predatory open access journals and publishers were controversial but his lists are a useful data point.