Google Dataset Search
Search for your topic (for example, "car accidents"). The first column will show a list of datasets related to your search. The second column will show more details about the result you have selected. The details will include a link to the actual dataset. The definition of "data" is very broad. You will find statistical information, texts (such as an electronic copy of Frankenstein), and more. The information is pulled from existing data platforms, such as Figshare or Data.gov.