Journal metrics aims to quantify the research impact of a journal in scholarly publishing. The Journal Citation Reports use the data of Web of Science to compute its journal metrics such as Impact Factor and 5-year Impact Factor. Scopus is another source providing journal metrics, including CiteScore, Source Normalized Impact per Paper (SNIP), and SCImago Journal Rank (SJR).
The Journal Citation Reports, Scopus, and Google Scholar provide journal lists of different subject areas respectively.
Please refer to the Library Guides on the commonly used journal metrics, and how to retrieve journal lists for different subject areas.