Is there a source that offers or maintains an exhaustive list of all the methods that are currently used to achieve consensus?
I wouldn’t call it exhaustive but doing a quick search I found this:
It did miss this one and probably others as well:
I hope this is what you meant.
I don’t have a list but there is a lot of them for sure. Many are experimenting with completely new ways to reach consensus. The most popular ones are: POW (Proof of Work), POS (Proof of Stake), DPOS (Delegated Proof of Stake). Thanks @bisks for the help.