World Bank (multiple indicators)
https://data.worldbank.org/indicator
World Bank – World Development Indicators (WDI)
https://datacatalog.worldbank.org/dataset/world-development-indicators
United Nations – Monthly Bulletin of Statistics
https://unstats.un.org/unsd/mbs/app/DataSearchTable.aspx
International Monetary Fund (IMF)
Organization for Economic Cooperation and Development (OECD)
https://data.oecd.org/searchresults/?r=+f/type/datasets
World Trade Organization (WTO) – Trade and tariffs
https://www.wto.org/english/res_e/statis_e/Statis_e.htm
United Nations Conference on Trade and Development (UNCTAD) – Multiple
https://unctadstat.unctad.org/wds/ReportFolders/reportFolders.aspx?sCS_ChosenLang=en
World Bank – Worldwide Governance Indicators (WGI)
https://datacatalog.worldbank.org/dataset/worldwide-governance-indicators
Polity IV Project
http://www.systemicpeace.org/polity/polity4.htm
Uppsala Conflict Data Program (UCDP)
https://www.pcr.uu.se/research/ucdp/
United Nations – Comtrade
Correlates of War Project (CoW) – Conflict, alliances, territorial change, diplomacy, and more