There is no reason for you to shave or buzz. You aren't receding so much that a decent hairstyle wouldn't look great.
If you want to try a shorter hairstyle, go for it! A short flattop or buzzcut would look great. If you're really curious what it's like to be bald, go ahead a shave it all off. In a week or two, it will grow back to a buzzcut. There is no other feeling like a shaved smooth head.