F2pool is a Chinese multicurrency mining pool founded in 2013. Now it has servers located in the USA, Canada, Russia, Singapore, and several other countries. The pool has a big number of supported coins. Currently, it is possible to mine around 40 currencies on F2pool.
Support XMR is a large mining pool designed for a single purpose which is Monero mining. The fee is quite low (0.6 ). The minimum payout is 0.1 XMR. Such an amount can be demanding for some people although it's quite a standard amount. The rewards are accruing every 2 hours. It is fair to say that Support XMR is popular among its users and the feedback is mostly positive.
Croat.Pool.CAT is the official Croat mining pool, from Catalonia, Spain. It has a Prop payment system and charges a 0.8% fee. Croat is a cryptocurrency based on the Cryptonote algorithm.