Would be useful to have an item type of "Journal". This is not the existing "journal article", but rather allows records that reference the entire publication. For example, the annotated bibliographies in Oxford Bibliographies provide a list of subject-relevant journals, which can be exported, and currently appear in Zotero as journal articles, which means that the title column is blank in Zotero for these items. More broadly, collecting a list of journals in Zotero is a very useful function in general, and currently not supported because of the lack of this item type.

I realize that creating a new item type in Zotero might not fix this particular problem until Oxford Bibliographies updates their export formatting, but it would be a start.