RigPool is a Bitcoin mining pool that pays miners through a PPLNS payment system. The pool has a 0% fee and the minimum payout is made when the user reaches 0.001 BTC.
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.
KomodoPool is a mining pool for Komodo (KMD). The user can mine KMD through a Prop payment system with a 0% fee. The pool shares the transaction fees with miners.
Coinmine is a technology company that released the Coinmine One, an “all-in-one” console that was designed for a comfortable individual cryptocurrency mining. Looking like an X-box, it allows for mining several crypto coins. Its developers state on the website that no special expertise is required to use it. To start with Coinmine, one needs to install and run it for any Android or iOS device provided that there is a wifi connection.