Using your PC and Graphic card to mine altcoins can help you make a few cents per day utilizing a PC that you have hanging around your place doing nothing. Based on my experiment Bytecoin BCN, MemoryCoin MMC, MCN and Fantomcoin FCN are the best altcoins to mine using a PC or a laptop. Always put into your consideration the price of the altcoin you choose mine and always consider shifting to the coins whose prices are soaring!!
To mine with gpu, I recommend the coins Ethereum classic, Monero and Zcash, whose difficulty is not so complicated and the generation oof the currency is simpler than others.
I highly recommend Nanopool.
I use the Claymore program, I recommend the manufacturers of Graphic Cards: Asus and Sapphire.
Mining in countries where electricity is economic is quite profitable, since you recover investment very quickly.