Here are some good ideas for buying and holding crypto:

1. Bitcoin (BTC): The first and most well-known cryptocurrency, often seen as digital gold.

2. Ethereum (ETH): A leading platform for decentralized applications and smart contracts.

3. Cardano (ADA): Known for its focus on security and scalability through a research-driven approach.

4. Solana (SOL): Popular for its fast transactions and low fees, ideal for DeFi and NFT projects.

5. Binance Coin (BNB): Used on the Binance exchange, with various utilities within the Binance ecosystem.

6. Polkadot (DOT): Aims to connect multiple blockchains, allowing them to work together.

7. Chainlink (LINK): Provides real-world data to smart contracts on the blockchain.

8. Litecoin (LTC): A faster alternative to Bitcoin, often used for smaller transactions.

9. Ripple (XRP): Focused on facilitating cross-border payments for banks and financial institutions.

10. Stablecoins (USDT, USDC): Pegged to fiat currencies, great for holding value without high volatility. Always research projects and consider market trends before investing!