Welcome to Overgrow man. (Just assuming your a man lol)
You can set your account up to receive notifications when someone posts in the Trading Post I was sniping the giveaways for a few months. After a while you will know who dose giveaways on there own thread.
Your going to need to participate and become known to get the really good stuff. But I can be 100% sure someone will set you up with something if you ask nice enough.
Go here.