Yes, in my undergrad government policy classes twenty years ago, we were talking about a "basket of currencies" that would replace the USD as the global reserve.
IMF has this, intra-countries, with their SDR ("Special Drawing Rights"). China was added in the 2010s, and USD has slowly been losing its percentage of the SDR's overall-makeup.
SDR's are a type of Keynes' "Bancor" concept, but only transactable between countries. Citizens may resort to the commoner's bancor, e.g. bitcoin (but also gold, silver &c).
IMF has this, intra-countries, with their SDR ("Special Drawing Rights"). China was added in the 2010s, and USD has slowly been losing its percentage of the SDR's overall-makeup.
[•] <https://wikipedia.org/wiki/Special_drawing_rights>
SDR's are a type of Keynes' "Bancor" concept, but only transactable between countries. Citizens may resort to the commoner's bancor, e.g. bitcoin (but also gold, silver &c).
[•] https://en.wikipedia.org/wiki/Bancor