Miner Maniac is multi-currency mining pool. currently, you can mine Bitcoin Private, BitcoinZ, Zcash, ZenCash VoteCoin and SnowGem with a PROP Reward System and 0.5% fees.
Although NiceHash is usually regarded as a mining service, it's better to say that it's a kind of a platform for selling/buying cloud mining contracts. What is special about NiceHash is that users can opt for both selling and buying the hash power on this platform.
HashFlare is a popular cloud mining platform launched in 2015. It is praised for its user-friendly interface making it possible to earn crypto for people unfamiliar with the world of cryptocurrencies . There are five currencies that can be "mined" on HashFlare: Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), Dash (DASH), and Zcash (ZEC).
MiningPond is a multi-currency mining pool, written in Go it's a rocket highly concurrent and low RAM consuming piece of code, with a high-performance proxy, designed for 100% distributed setup. Payouts and block are in unlocking module and have a strict policy module.