hello i was looking arround for a btc miner to make profit but i couldnt find any that make nice profit my budget is €500 does anyone have any tips or advices i can use? Or any specific models?
Before you buy an asic you should use the calculator
https://www.asicminervalue.com/Modern models of asics cost a lot more, and older models can mine at a loss.
What is your cost of electricity?
Do you have the ability to install a noisy asic in your facility?
If you answer these questions, the communication will be more useful.