What are alt Cryptos?

Could you please clarify what you mean by "alt cryptos"? Are you referring to alternative cryptocurrencies, or simply any cryptocurrency that is not Bitcoin? Alternative cryptocurrencies, often referred to as "altcoins," are digital assets that are designed to function as a medium of exchange, like Bitcoin, but with their own unique features and characteristics. They often aim to solve problems or address limitations of Bitcoin or other established cryptocurrencies. Are there any specific altcoins you would like to know more about?