Anyone building a digital coin that can actually replace fiat?

[sublime5447]

I want to get involved with a digital currency that can actually work to replace government issued fiat, does anyone know of one?

It would require a standard and a different method for creating them (other than POS/POW). I have lots of suggestions and would like be involved in something that can make a difference. I would be willing to run a node for free and promote.

Not looking for bitcoin zealots, but open mined individuals who realize bitcoin's days are numbered and its impact will be minuscule, at least in its current form.

I am not talking about a medium of exchange for dark markets I am talking about a new monetary system for the masses.