Here are 5 cryptocurrency coins I would recommend for a $1000 portfolio, based on my knowledge as of January 2024:

1. **Bitcoin (BTC)$BTC **: As the original and largest cryptocurrency, Bitcoin is considered a relatively stable long-term investment. I would recommend allocating 40-50% of the portfolio to Bitcoin.

2. **Ethereum (ETH)$ETH **: Ethereum is the second-largest cryptocurrency and the leading platform for decentralized applications. It has shown strong growth potential and I would suggest allocating 20-30% of the portfolio to Ethereum.

3. **Solana (SOL)$SOL **: Solana is a high-performance blockchain platform that has gained significant traction in the decentralized finance (DeFi) and non-fungible token (NFT) space. I would recommend allocating 10-15% of the portfolio to Solana.

4. **Polkadot (DOT)**: Polkadot is a scalable, interoperable, and secure blockchain platform that enables the creation of custom blockchains. It has the potential for long-term growth, so I would suggest allocating 5-10% of the portfolio to Polkadot.

5. **Chainlink (LINK)**: Chainlink is a decentralized oracle network that provides real-world data to smart contracts. It is a key component of the DeFi ecosystem and I would recommend allocating 5-10% of the portfolio to Chainlink.

Remember, cryptocurrency investments carry significant risks, and it's important to do your own research, diversify your portfolio, and only invest what you can afford to lose. This is not financial advice, but rather my general recommendations based on the information available to me as of Jan 2024.