Bitcoin - The first and most well-known. Altcoins - Alternatives to Bitcoin, like Ethereum, Litecoin, and Ripple. Stablecoins - Cryptocurrencies pegged to stable assets, such as Tether (USDT). Tokens - Digital assets built on other blockchains, like ERC-20 tokens. Privacy Coins - Focused on anonymous transactions, e.g., Monero, Zcash.
