Depends on many things, especially which coin you mine.
Right now I find MERIT (MRT) to be one of the most profitable coins to mine. Especially because it is a limited group of invited people in the network, so the distribution is fair.
You can sign up for mining merit using this link: LINK
Were you bump this thread just for post a Ref link?
Referral link is restricted here, dude! You should delete it!
Mining using a rig for now is still worth it? in terms of electrical power, payment of electricity in a month, income entered in a month, but the price of crypto is on a downward trend, how do you balanced it with profit per month
Every miner must have the different answer. They have different electricity cost, mine on the different coin/algorithm, and many other different things. But if you ask me, I just mine with a few GPU, and I still get a bit profit after operational cost.