8. Polkadot (DOT)
Polkadot is a one-of-a-kind cryptocurrency with the goal of bringing blockchain interoperability to the masses. Its protocol connects permissioned and permissionless blockchains, as well as oracles, allowing systems to communicate in one place. Gavin Wood is a co-founder of the Ethereum Project and its former CEO. Polkadot is worth $30.3 billion as of March 2021, and one DOT is worth $32.83. Polkadot is a decentralized internet that uses the Polkadot relay chain to allow different blockchains to share data and information in a trustless manner.