For a general search across open datasets, you can search by keyword with Google Dataset Search:
Google Dataset Search
Defining the scope of the data you are interested in and how you envision using it will help determine the best data resources to explore. High quality open access datasets exist, but they are not always easily findable and verifiable. Curated and licensed datasets for IUSM affiliates are also available through a variety of platforms, and may require training, a formal request process, or additional fees. Major IUSM-affiliate data resources, along with selected open access data resources, are summarized in this guide.