Every possible way to earn free crypto

List is not exhaustive and doesn't contain any referral codes.
1. Coinbase Earn (~29 USD) https://www.coinbase.com/earn

2. Coin Market Cap Earn https://coinmarketcap.com/earn/

3. Earnathon (~20 USD) https://earnathon.com/

4. Airdrops ( https://airdrops.io/ )

5. Faucets ( Google search: "name of the coin" + faucet )

6. Games and Collectibles ( Ex: Axie Infinity, Decentraland, Ever Dragons, Crypto Kitties )

7. Bounties ( https://beta.bounty0x.io/explore )

8. WeNano ( https://wenano.net/ )

9. NanoQuakeJs ( https://www.nanoquakejs.com/ )

10. Reddit ( NANO, DOGE, MOON)

11. SteemIt ( https://steemit.com/ )

12. NFT Marketplaces ( Ex: Rarible, OpenSea)

PS: Consider ETH fees before exchanging and trading