I personally really like airdrops. DeepOnion has a free airdrop going on right now, 7 more to go. It is a great way to distribute the coin and build up a community of people. Another thing I like about DeepOnion are all the features they keep coming out with, a recent one is an Android Wallet, which they are in the final stages of development on it! That is way cool. Check out more information about the wallet here:
https://deeponion.org/community/threads/video-deeponion-android-wallet-is-coming.28430/