1. Polkadot: Polkadot is an innovative multi-chain network that aims to connect different blockchains to enable seamless communication and data transfer. Its unique architecture and interoperability features make it a promising project to watch in the coming years. NFA.

2. Avalanche: Avalanche is a highly scalable and decentralized platform that offers fast and low-cost transactions. Its consensus protocol, Avalanche, allows for high throughput and quick finality, making it a strong contender in the blockchain space. NFA.