I'm just begin interested in golf, so i'm intend buy one golf club but I don't have the experience to choose. What are my options?
You cannot play golf with just one club. You need a fairway club and a putter. For a new player I would go with like an 8 iron and a putter.
Many golf shops have a used bin.
You can find whole golf sets in resale shops cheap.
Driving ranges often have loaner clubs.