It depends on your rig: AMD or Nvidia.
AMD: Ethash (ETH,ETC,UBQ... ) or Cryptonite coins (XMR, ETN...)
NVIDIA: Equihash (ZEC,BTG...)
More like, it depends on your target coin's alogaridm to mine.
In addition, are you dedicated to GPU or CPU mining? You have to research the coins you want to mine in order to have an efficient Hashrate using the minimal energy consumption available. Some coins doesn't even getting a lot of benefit from a powerful GPU like
Monero/Electroneum unlike when you use the rig for
Etherium.
CPU mining is underrated it's underestimated by mining community. GPU rigs are trendy nowadays for dash coin and Ethereum. I am planning to spot a mining farm for one of them. How could I get an effective tutorial for mining?