I think you should try mining veil and suqa. Both projects are promising and the reward for mining is encouraging.. I would have said you mine the major currencies such as bitcoin and ethereum but I feel unless you have sufficient mining power the whole process may become fruitless.
I already have them now I am looking for a coin which is can gives me real profit while the bitcoin price increases.
I'm interested on bitcore and aeternity it looks like they are best option for now.