Find repositories
A good place to start looking for published research data is the registry that lists all major data repositories in all scientific disciplines. Searching for repositories be conducted using specific keywords or by subject classification. Specific data can then be searched in the identified repositories. re3data.org
Search for data sets
A good entry point for directly searching research data is the . All research data that has been assigned a DOI will be listed in this portal. Google also offers a DataCite Search Portal. The quality of the search depends on the search engine for scientific data of the datasets and can therefore vary considerably. metadata
Check reusability
Depending on data type or intended use, certain legal conditions may apply for reuse. Ideally, datasets are provided with a free license or will otherwise define conditions for reuse.