How to find the list of relevant IEEE journals to publish a paper in? If one has research findings in a topic X, and wishes to publish it in one of the many IEEE journals, which is the best way to list the journals that includes X within its scope?

Note that the solution to X might use one or more of frameworks of [A, B ..], where 'A' can covered in the scope of journal J1 and 'B' can be within the scope of journal J2 and so on.

The obvious method might be checking up on the keywords in IEEEXplore and look for journals corresponding to previously published papers that come up. But is there any other way?
IEEE.org currently has a Publication Recommender tool where you input the keywords, key phrases, title, abstract etc. of your article, or the actual document of the article (in pdf, doc, docx or tex format). You can narrow the search to periodicals and/or conferences, or the date you want to publish before. I tried it with the two articles I've actually finished, and received a few good recommendations with high relevance scores for both.