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The 3 Best Alternatives That Can Be Strong Opponents to Ethereum can be strong contenders. Polkadot uses sharding technology to achieve scalability and interoperability that Ethereum can't do. NEAR is open-source and cares for developers because it provides 30% of transaction fees to the smart contract creator. Algorand is a permissionless platform-based blockchain working towards building a borderless economy that was founded by Dr.Silvio Micali. It has innovative facilities for developers to create and run smart contracts or Dapps.