I'm yet to find a Cryptocurrency that Is not a shitcoin,   and believe me I've searched. There ARE some better disguised than others under layers of technical obfuscation,  but all have intractable flaws that lead them to become either centralized over time,  or Oligarchies controlled by a small group of whales.

I've found a "few" projects with real potential for a breakthrough,  but they involve the creation of a whole new programming language and are no where near guaranteed to achieve the holy trinity of Secure/fast AND decentralized,  so for now we make do with shitcoins,  current tech right now is secondary (as they are ALL broken) to focusing on projects that have gone full bore on reaching the masses with Crypto by positioning themselves correctly.

And out of those few,  the one that swaps in their placeholder blockchain for the "Secure/Fast AND decentralized" ledger tech the quickest (IF and WHEN it is developed and released)  will be the coin that rises in that generation of Crypto.