How to buy a new coin before listing on Binance?

Can anyone tell me how I can go about purchasing a new cryptocurrency before it's officially listed on Binance? I've heard rumors that some investors manage to get in early and make a substantial profit. But how do they do it? Is there a specific process or platform that they use? I'm new to the crypto space and I'm eager to learn more about how I can get in on the ground floor of these exciting new projects. Any insights or advice would be greatly appreciated!