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.
Cruxpool is a mining pool made for miners by miners and operated by the company ILIIUM. It provides a bunch of tools to help miners monitor their mining rigs: real-time statistics, professional support (with a dedicated Discord), 0% fees for two months, very low threshold (0.01 ETH), and complete API and tutorials.