Xah Lee has a roundup of emacs Starter Kits on his blog. He’s got a list of 5 such kits so there’s a lot to choose from.
Lee also notes that you can just install Emacs and add things as you need them. That’s the approach I took, probably because there weren’t any starter kits when I first came to Emacs. That approach has worked well for me. When a user of one of the starter kits writes about some wonderful feature in his setup, I just add it to mine. Of course, I’m a programmer so this is natural for me. If you’re a bit less technically inclined, one of the starter kits may be the right answer for you. I’ve heard good things about all the kits that Lee lists so pick one and start building your own configuration from there.