Yes, there are. Bitcoin is the first crypto and currently the most popular. As the first, Bitcoin inspired the development of other cryptocurrencies, which presented themselves as improved and modified versions of Bitcoin. They are called altcoins. There are thousands of altcoins, and they differ from each other. Each altcoin has its economic model, uses different mining protocols, and offers a varying degree of privacy and speed. Some of the leading altcoins include; Ethereum, Litecoin, XRP, Stellar Lumen, Polkadot, EOS, etc.