Here's a good starting point for your research. The sources here cover the spectrum from liberal, independent, conservative, libertarian and much of the space in between. I welcome your suggestions for additions to this list.
Center for American Progress (Liberal)
The Atlantic
Brookings Institution (Independent)
Cato Institute (Libertarian)
Congressional Budget Office
Council on Foreign Relations
The Economist
Heritage Foundation (Conservative)
The New Republic
Politico
PolitiFact
Public Religion Research Institute
Reason Magazine
