can i suggest you mine folding coin? This coin contributes to medical research you are advancing humanity while making some profits. Monero is profitable for CPU but really there are guys with mining rigs that will mine faster and alot more then you can.
When monero is profitable one why you suggesting folding coin
You have to understand that mining with CPU is now no more giving profit for it. Please check that first. Even monero is also good to mine the GPU only not with the CPU mining.
If you have 6 cards rig means you can make 200 USD at least per month.