The DOAJ contains information about scientific and scholarly open access journals that use quality controls such as peer review as part of their article selection criteria.
Look up journal impact factors and citation and article counts.
Not all publishers are on the up-and-up. Have you been solicited to publish in a particular journal? Have you been asked to be an editor or reviewer? Are you skeptical? How can you be sure the journal is reputable?
Features to look for and verify:
Be skeptical when you are solicited to publish anywhere. If you find any of the above flags, or others, beware and seek assistance from your librarian liaison.