There are a variety of tools and resources available to share your research data.
Post data on a project website - Offers the benefits of Open Access and broad dissemination, but requires regular maintenance and there's no control over who can access your data.
Submit to a data journal - Data will be associated with the published work, but depending on the publisher access may be restricted to those who subscribe to the journal.
Individual Data Requests - By making data available upon request you retain control over who has access to it, but it can be a time intensive method and may not be an acceptable method for your funder.
Deposit data in a repository - Whether it is a disciplinary, subject, general, or institutional data repository this can be a good method for making data freely available, complying with funder requirements, and requires no ongoing maintenance by you, but you cannot control who accesses data.