Is there a journal whose articles you find yourself citing often in your research papers? Is this a potential journal in which you might publish? You need to find out a few things.
Most of the answers to these questions can be found on the journal's official website. If you cannot find answers to all of these questions, locate the contact us email address and send an email to the journal contacts and ask your questions. You may also consider sending an email to one of the editors to ask your questions.
If you are not having success at the website you might want to consult Cabell's Directories, see below.