Perhaps also have a look at the data sets of the worldbank, imf and oecd. I use them often for (lt) forecasts

Thes Institutions can provide you with the most accurate upto date economic forecasts of US but at a cost:

Dow Jones & Company, Forbes, Securities and Exchange Commission, The Economist, The Wall Street Journal, and the Federal Reserve.

For US official economic data, see https://www.bea.gov/about/who-we-are