Just do a quick search on YT for bitcoin farm
Take a look at the farms in the results and the answer should be quite obvious.
If you are so set on mining - the answer is in alts. If you have anywhere between 8 and 20k$ you can build a rig or buy one and start mining alts. When you’re building a rig to start mining you should factor in the cost of electricity, initial investment, the crypto currency price variations/volatility and the constantly rising dificulty per block.
So, yeah. Do the math. (There are mining calculators that can do it for you)
Then decide if it’s worth the investment.