The Career Force goes through her top 5 free dataset resources in this video.

1. Data.gov: https://data.govData.gov is a large dataset aggregator and the home of the US Government’s open data.
2. FiveThirtyEight: https://data.fivethirtyeight.com/ This is a great resource to not only see datasets, but also see how a well-respected analytics organization provides meaningful insights and commentary on the data.
3. Kaggle: https://www.kaggle.com/Kaggle  is a great resource not only for free datasets, but for data science topics in general.
4. Data.World: https://data.world/ There are hundreds of thousands of free datasets for anyone that sets up an account on data.world.
5. Google Dataset Search: https://datasetsearch.research.google.com/ By accessing thousands of different repositories across the web, Google Dataset Search provides access to almost 25 million different publicly available datasets.