The Euro may go for it https://www.bruegel.org/first-glance/more-eu-debt-issuance-w...

The Euro already is the second reserve currency of the world, and because it's already an international currency, no single country can just decide to print more. It's a far more attractive choice than the Yuan or arguably the Dollar.

It will be interesting if countries eventually move to crypto stable coins that aren't tied to individual powers