Aave and Comp tokens are still the best tokens to stake for their stability and being pioneers of DeFi factories such as yield farming and liquidity mining. Bet these two onto your portfolio and it will further scale with their plans to improve the services beyond DeFis.
At the time of my knowledge update to January 2022, Aave (AAVE) was not a token generally used for staking in the classic sense. Aave is better known as a lending and borrowing protocol in the DeFi (Decentralized Finance) space. Traditional staking generally involves depositing tokens into a blockchain network to support network operations and receiving rewards in the form of additional tokens.
However, Aave has another feature called “staked Aave” (stkAAVE) that deals with liquidity mining. This involves users depositing AAVE and receiving “staked AAVE” as a token that they can use to earn a portion of the protocol fees.
Make sure to check the latest updates regarding Aave and staking, as projects in the crypto space may experience changes and updates after my last knowledge update. Always refer to Aave's official website and other reliable information sources for the latest information.