Choosing your journal - be aware of predatory journals

There is a useful checklist provided by Butler, D. (2013) Investigating journals: the dark side of publishing. Nature. 495 (7442) https://doi.org/10.1038/495433a:

Buyer beware: A checklist to identify reputable publishers

How to perform due diligence before submitting to a journal or publisher:

Check that the publisher provides full, verifiable contact information, including address, on the journal site. Be cautious of those that provide only web contact forms.
Check that a journal's editorial board lists recognized experts with full affiliations. Contact some of them and ask about their experience with the journal or publisher.
Check that the journal prominently displays its policy for author fees.
Be wary of e-mail invitations to submit to journals or to become editorial board members.
Read some of the journal's published articles and assess their quality. Contact past authors to ask about their experience.
Check that a journal's peer-review process is clearly described and try to confirm that a claimed impact factor is correct.
Find out whether the journal is a member of an industry association that vets its members, such as the Directory of Open Access Journals (www.doaj.org) or the Open Access Scholarly Publishers Association (www.oaspa.org).
Use common sense, as you would when shopping online: if something looks fishy, proceed with caution.