Here are some sources of data sets I have gathered.
General
Kaggle
Open Public Datasets
Chocolate Ratings
King County, WA Housing Prices
University
CMU Data and Story Library
Berkley
Datasets for Using R
Time Series
Many free time series data sets over a variety of topics
Google trends in search queries
Yahoo financial and stock market data
Federal Reserve economic data
World Bank economic data
Kaggle Time Series data sets
Other
Many data tables from the United Nations
ICPSR extensive social science data bases
100+ Interesting Data Sets for Statistics
Humanitarian Data Exchange
European Environment Agency
Statistical Science Web: Data Sets
35 Free Datasets
Github Public Data Sets
Airline Flight Data
Public Datasets
Gapminder World
World Atlas
General Listings
USD-Euro
Crude Oil
30-year Fixed Rate Mortgage USA Average
Government
CDC
CDC Vital Statistics
CDC Covid Vaccine Trends
American Community Survey Data
US Census
US Census 2000
Working with Census Data
US Government I
US Government II
Dataferrett Census
BLS
San Francisco Government
Sports
NBA Basketball Statistics
Football Analytics
databaseSports.com
From the Tableau Community
Data Sets