Source: https://en.wikipedia.org/wiki/List_of_countries_by_credit_rating (as of July 2022)
Already In Default: Lebanon, Sri Lanka, Russia, Suriname, Zambia, Venezuela
Most Likely To Default Next (as of July 2022): Belarus, Argentina, Ukraine, Tunisia, Ghana, Egypt, Kenya, Ethiopia, El Salvador, Pakistan, Ecuador, Nigeria
See Also: https://www.reuters.com/markets/europe/big-default-dozen-countries-danger-zone-2022-07-15/
Image Source: https://upload.wikimedia.org/wikipedia/commons/1/1a/BlankMap-World_S%26P.svg (author: Szmenderowiecki)
Note: Displays only S&P ratings (as of March 2022)
Source: https://en.wikipedia.org/wiki/List_of_U.S._states_by_credit_rating (as of July 2022)
Source: Author's research (as of July 2022), mostly from investor relations pages of individual provinces and Dominion Bond Rating Service (DBRS).