Someone who is a pro knows how to choose a banjo, but a beginner probably doesn't. The Goodtime Banjos by the Deering Company are great for beginners. They're affordable and have a nice sound. They also come with or without a resonator and some kits even come with a gig bag.
I mention the Deering because I have a friend who started playing banjo and he got a recommendation to buy a Deering. He said it's a great instrument and he loves playing it. He has a better banjo now, but he said he still takes his Goodtime instrument to jam sessions because it’s lightweight and easy to carry.