• RaiBlocks
• Cardano
• Stellar
• Ethereum
• Bitcoin
• Ripple
• Litecoin
• Monero
• IOTA
• Enigma

I list Bitcoin because I feel in 2018 it will stop being as "special" as it used to be.
In 2018 most focus will be on increasing scalability and transaction speed. Also on reducing chain bloat problem.