DeFi, short for decentralized finance, is a rapidly growing sector in the world of cryptocurrency that aims to revolutionize traditional financial services by eliminating the need for intermediaries and providing users with greater control over their assets. There are a wide variety of coins that are being used in the DeFi space, each with its own unique features and potential for growth. Some of the potential coins in DeFi include:

1. Ethereum (ETH): Ethereum is the most widely used blockchain platform for DeFi applications. Many DeFi projects are built on the Ethereum network, including decentralized exchanges, lending platforms, and stablecoins.

2. Uniswap (UNI): Uniswap is a decentralized exchange that allows users to trade a wide range of ERC-20 tokens without the need for a centralized intermediary. UNI is the native token of the Uniswap platform and is used for governance and liquidity mining.

3. Aave (AAVE): Aave is a decentralized lending platform that allows users to borrow and lend cryptocurrencies without the need for a centralized intermediary. AAVE is the native token of the Aave platform and is used for governance and fee discounts.

4. Chainlink (LINK): Chainlink is a decentralized oracle network that connects smart contracts with real-world data. LINK is the native token of the Chainlink platform and is used to pay for data feeds and services.

5. Compound (COMP): Compound is a decentralized lending platform that allows users to earn interest on their cryptocurrency holdings. COMP is the native token of the Compound platform and is used for governance and voting rights.

6. Maker (MKR): Maker is a decentralized stablecoin platform that allows users to mint and manage stablecoins collateralized by cryptocurrency assets. MKR is the native token of the Maker platform and is used for governance and voting rights.

7. Synthetix (SNX): Synthetix is a decentralized platform that allows users to create and trade synthetic assets that track the price of real-world assets. SNX is the native token of the Synthetix platform and is used for staking and governance.

These are just a few examples of the potential coins in DeFi, and there are many more projects that are working to innovate and disrupt the traditional financial system. As the DeFi space continues to evolve, it is important for investors to conduct thorough research and due diligence before investing in any cryptocurrency project.