Useful tools for finding journals:
You can browse available e-journals by subject in Oula-Finna, e.g.
The SCImago Journal & Country Rank portal contains ranking lists by subject for publications (journals, conference proceedings, books) included in the Scopus database. Lists can be sorted according to different indicators.
Journal Citation Reports is a comprehensive and unique resource that allows the evaluation and comparison of journals using citation data drawn from over 10000 scholarly and technical journals included in the Web of Science -database. Journals are divided into over 200 categories by subject.
More full text databases on Oula-Finna database list
Guide to evaluation based on scientific publishing : Evaluating journals
A scientific publication is openly accessible when both the scholarly community and the general public have free and unrestricted access to it on the Internet.