Cryptocurrency types include:
Stablecoin or Digital Fiat. A stablecoin is a type of cryptocurrency whose value is attached to that of a separate asset, such as currencies or commodities like gold. A digital fiat represents a government-backed currency on the blockchain. Tether, one of the most popular examples of a digital fiat cryptocurrency, pegs its value to the US dollar.
Memcoins. These have little to no value and no discernable value proposition.
Non-fungible Token (NFT). An NFT basically stores data or accounts for it in a digital ledger, and that data represents something specific.