Expensive computers will now pay off in mining for many years, so it is more profitable for you to study the equipment rental market and try to make money on it.
Mining on processors and video cards is now practically dead, unless you are interested in a payback of 4-5 years.
Sometimes there are new coins, but I either mined very little of them or sold them early, afraid that the price would fall too much, so I would not count on such a result, unless you are a developer of a new coin.
If you want to mine, then study ASICs.