[kilimchoi]

Zcash, Monero, Dash, Komodo

It's anonymous when destination address & the amount sent are not seen by anyone. Zcash, Monero are anonymous by default.

However for Dash, you can specify whether your transaction is private or public.

Komodo is a forked version of Zcash. And Zcash implements zero-knowledge proofs which are known to protect recipient's anonymity however, there are some debates about that, http://www.coindesk.com/investors-know-trading-zcash/

If you want to learn more about other coins, check out http://coingenius.io