Cornell has a robust LibGuide on Open Access Publishing : Where to publish
This guide covers repositories, directories of journals, copyright policies, and data sharing options.
The link is also here: https://guides.library.cornell.edu/openaccess/publish
The Enago Open Access Journal Finder enables you to find quality open access journals that are pre-vetted to protect you from predatory publishers. This free journal finder solves common issues on predatory journals, journal authenticity, and article processing fees by utilizing a validated journal index provided by the Directory of Open Access Journals (DOAJ).
The Open Access Spectrum was developed by SPARC in collaboration with PLOS and OASPA. This tool displays the core components of openaccess across a spectrum indicating how closed or open a journal is based upon its policies on reader rights, reuse rights, copyrights, author posting rights, automatic posting, and machine readability. The How Open Is It? guide can be downloaded and shared with faculty and students who have questions about how to evaluate open access journals. The Open Access Spectrum Evaluation Tool can also be used to filter and locate journals based upon publisher policies on these key components.