1. Faucet I was tried but it's so slow, so I don't advice anyone to do that.

2. Airdrops Not bad at all, very simple so it could be one to earn free crypto.

4. Advertise I don't know what do you mean by the advertising. If its banner advertises then it's a good and handsome way though not possible for all.

5. Social Media I am uncertain about this because social media could be under bounty.

Bounty Very interesting way to earn crypto I like it very much.