Here are a few legitimate ways to earn small amounts of cryptocurrency:
Faucets: Websites that give away small amounts of cryptocurrency in exchange for completing simple tasks or solving captchas.
Mining: Participating in the process of verifying and adding transactions to a cryptocurrency's blockchain in exchange for a reward.
Airdrops: Receiving free tokens as a promotional tool by companies or projects in the cryptocurrency space.
Staking: Holding onto a certain amount of a cryptocurrency and participating in the validation of transactions on its network, which can earn you rewards in the form of more cryptocurrency.
Keep in mind that these methods usually require a significant amount of time and effort, and the amounts earned will typically be small. It is always important to be cautious and thoroughly research any opportunity before investing time or money.