This is a difficult question to answer as it depends on your financial goals and risk appetite. Before investing in any cryptocurrency, you should do your own research and understand the risks associated with investing in the digital asset. Generally, it is recommended to invest in well-known and established cryptocurrencies such as Bitcoin, Ethereum, and Litecoin. These cryptocurrencies have the most liquidity and have been around the longest. Other options might include coins that offer specific use cases or projects, such as privacy coins like Zcash and Monero, utility tokens like Binance Coin and Uniswap, or DeFi protocols like Maker and Compound. Investing in different types of coins can help you diversify your cryptocurrency portfolio and reduce overall risk. Ultimately, the best cryptocurrency to invest in depends on individual goals and risk profile.