How to find a psychic? The same way you would find another person. Asking around helps; a friend of a friend might know a person who is exactly who you are looking for.
It also helps greatly if you know for what reason you are seeking a psychic. Do you wish to get a psychic reading? Do you want learn about psychics? Are you looking for a mentor? Are you looking for a friend to travel the path with you? Or are you trying to find a psychic simply for entertainment purposes?
If you are simply looking for general information about psychics, reading books might be a better idea. For a semi-objective psychic reading, you should look for a person who doesn't know you well. If you are looking for advice, a trusted friend might be your best bet.
In either case, chances are that there are people around you interested in the psychic realm, but perhaps lacked the courage or companionship do something about it. A lot of people are interested in astrology or tarot, and through these psychic disciplines you already have a framework for discussion.
Go ahead and ask the people around you.