These tips come from my experience both as an author submitting to refereed journals and as a past editor of Teaching Sociology. Though all the tips may not always fit your circumstance, discipline or publication outlet, I believe many are useful when preparing and submitting an SoTL article for publication. Think long and hard about the purpose of the article and the intended audience. Consider your purpose, the mission of the publication, article restrictions, etc. Look for a good fit between your article and a publication outlet.
Many journals have a page that explains their mission or the types of material they publish.
In addition, you can look at the notes or articles published in recent issues. Consider whether a discipline-specific or more general pedagogical journal is most appropriate. Look for special issues being planned in which your article might fit. Contact editors of outlets that look promising and ask if and how your article might fit in an upcoming regular issue, or whether they are planning or might consider a special issue on that topic. Be sure to cite key people in the area.