Data journals are scholarly journals that publish datasets or data papers. According to Geoscience Data Journal, "a data paper describes a dataset, giving details of its collection, processing, software, file formats etc, without the requirement of novel analyses or ground breaking conclusions. It allows the reader to understand the when, how and why data was collected and what the data-product is." You should be aware that these exist, as this data would be useful to you in your projects. Plus in your future work in data science, you might be working for or publishing in one of these journals.
I would like to acknowledge Sarah Callaghan's "Data Journals List" (2012 - no longer on the web) in helping me uncover many of these titles.