You can deposit your data in dedicated data repositories. Some repositories, such as Zenodo, accept both publications and datasets. Data repositories allow you to provide persistent links to your datasets, so that they can be cited, linked and tracked. This also allows for version control. Just like publications, you can license your data to make clear what level of reuse you will allow for your dataset. OpenAIRE recommends to use the Creative Commons CC0 Waiver or CC-BY licence for open access to data.
Overviews of data repositories can be found on re3data.org. It is recommended to select a certified so-called Trustworthy Data Repository, when this is available in your discipline.
More information about Research Data Management (RDM) and making your data open:
More information on licences:
Training Materials about RDM: