According to the University of Chicago Library's Research Data Management Guide (2018), data sharing and preservation are components of a data management plan (Components of a Data Management Plan section, para. 4 & 6). Some funding organizations ( e.g., NSF and NIH ) and journals ( e.g., Nature ) require data sharing.
Click on links given below to learn about data publication and preservation.
A List of Data Journals from University of Michigan Library
Click here to view the additional list of repositories.