The Directory of Open Access Journals (DOAJ) is a service that indexes high quality, peer reviewed Open Access research journals, periodicals and their articles' metadata. Journals must apply for inclusion in this quality controlled list. This is an excellent place to search for reputable open access journals in your discipline.
Many OA journals do not charge fees, or will waive fees if the author is from a developing country or does not have funding. OA fees (APCs) are generally an acceptable expense in grants - so you can budget for them in your grant application.
If you do need to pay APCs there are some other sources of help in paying fees:
Publications Fund from Research Services: Up to $1500. See this page for more details.
Discounts for Article Processing Charges (APCs) by publisher:
BioMed Central publishes more than 200 journals in the fields of science, technology, and medicine.
Public Library of Science (PLoS) publishes a suite of biology and medical journals.
Open Library of Humanities is a charitable organisation dedicated to publishing open access scholarship with no author-facing article processing charges (APCs).
Open Humanities Press journals are leading open access publications in critical and cultural theory.
Synergies is a not-for-profit platform for the publication and the dissemination of research results in social sciences and humanities published in Canada.
"Hybrid Journals" is the term used for traditional subscription journals that provide an open access option for authors who choose to pay the additional fee.
Publishers with Paid Options for Open Access - a list maintained by the SHERPA/RoMEO folks.
This Wikipedia entry has a list of publishers too.
More and more traditional journals are offering this option - check the website of your favourite journal to see if it does!
Predatory publishers use deceptive practices to lure authors to publish with them. They exploit the open access author-pays model for their own profit.
Always carefully assess an unfamiliar publisher before submitting your work to them. Use some of the checklists and resources listed below, and ask colleagues for their opinions. Your liaison librarian may also be able to advise you.
Want to learn more? Visit a more comprehensive guide on this topic:
Checklists to evaluation journals/publishers:
Open access journals based at the University of Saskatchewan:
Open Journal Systems (OJS) is a journal management and publishing system that has been developed by the Public Knowledge Project through its federally funded efforts to expand and improve access to research.