Which cryptocurrencies are best for long-term holding?

Bitcoin and Ethereum are most commonly held long-term due to their established market positions and network security. Bitcoin, created in 2009, has the largest market cap and is often called 'digital gold.' Ethereum powers smart contracts and decentralized applications. Other popular long-term holdings include stablecoins like USDC for reduced volatility, and established altcoins like Cardano or Polkadot. Success depends on your risk tolerance, investment timeline, and belief in the technology. Always research projects thoroughly before investing, diversify your portfolio, and only invest money you can afford to lose. Long-term holding requires patience through price fluctuations and strong security practices to protect your assets.