I do not doubt that Bitcoin will eventually scale. This is does not concern me. However, I do think that other coins will not have the same effort put into them as Bitcoin - which brings me to my overarching question of which altcoins have the most promising scale solution. To me, this is one of the most integral parts of cryptocurrency besides privacy (again this is my opinion). This being the case, I would like to start a discussion as to which coins we ought to look to for ideas to solve scaling in a way that is actually feasible and not vaporware. To start this discussion in an impartial way, I have purposefully left out the coins that I think can scale well since I already have a stake in them.

Furthermore, I do think that we should keep this discussion organized in a way that clearly states what type of coin we are talking about and how it solves scaling e.g. to solve CryptoNight scaling issues, this coin will do this to fix this problem. Do not merely state that you like a coin and that we should blindly go to your Discord or website. Instead, explain how the coin solves scaling, why it is important, and how it can contribute to the cryptospace by solving a problem. Also, if you are capable, please explain in a technical way as well as a non technical layman way for non technical people to understand and contribute to the discussion.