https://rvnstats.info/ <- Might be useful, plenty of information.

https://rvnstats.info/d/000000007/x16r-ravencoin-mining-pool-statistics-v0-1?refresh=1m&orgId=1

Mining pool stats, suprnova is the biggest. I also used yiimp but 2% fee there so swapped to suprnova who charge 1%. I havn't checked out the rest, but happy with suprnova for now so will stick with them.