Confused About Coding World, and even getting people to look.

Where do people even find angels to show what you have done without a network? Is it the best/only way to get a direct introduction from someone you know that vouches for the person? Figuring out problems is fun, then you build it, but once I do where do you take them, are the events? Online, can you send an email, just curious as to what you angels look for and how to find you?