SARMS are a great alternative to steroids. They are not the strength of steroids, but they are much safer in the way of side effects. They do not effect the liver, they do not aromatize into estrogen and they are minimally suppressive of natural testosterone production. A 5-10 pound of lean mass can be obtained with a 12 week SARMS cycle. You won't loose any of the gains either because they are so minimally suppressive.
Look into the SARMS triple stack:
http://www.evolutionary.org/the-SARMS-triple-stack-protocol
After the triple stack, run a mini PCT. 4 weeks of the following:
clomid at 25mg/day
nolvadex at 20mg/day
HCGenerate ES at 5 capsules/day
n2guard at 3 capsules/day
SARMS are minimally suppressive, there is no risk of aromatization (therefore no estrogen related side effects) and legal to use. You can get everything you need off sarms1.com, n2bm.com and ag-guys.com