i asked the guy on the boards who screamed natural the hardest.
he gave me a list of sites.
before that, a club bouncer at the gym could always get it. they make a good $5/hr so they need to have extra income,and since they're also heavily in the drug culture through work, it's not hard to get.
black people at the gym tend to not have steroids ever, but all jacked white dudes do or know someone who does.