Best coins to hold for long rewards

1. Ethereum (ETH) - Ethereum is the second largest cryptocurrency by market capitalization and is widely considered to be the most established smart contract platform in the industry. With the upcoming Ethereum 2.0 upgrade, which will bring improvements in scalability and security, ETH is expected to see continued growth in the long term.

2. Cardano (ADA) - Cardano is a blockchain platform that aims to provide a more secure and scalable infrastructure for the development of decentralized applications and smart contracts. With a strong team and a clear roadmap for future development, ADA is a promising altcoin to hold for the long term.

3. Polkadot (DOT) - Polkadot is a multi-chain blockchain platform that enables different blockchains to transfer messages and value in a trust-free fashion. With its unique architecture and interoperability features, DOT has the potential to become a major player in the cryptocurrency space in the long term.

4. Chainlink (LINK) - Chainlink is a decentralized oracle network that enables smart contracts to securely interact with real-world data. As the demand for reliable and secure data feeds increases, LINK is expected to see continued growth in the long term.

5. Solana (SOL) - Solana is a high-performance blockchain platform that aims to provide fast and scalable solutions for decentralized applications. With a growing ecosystem and strong community support, SOL has the potential to become a major player in the cryptocurrency space in the long term.