If you enjoy spending time in the gym as a hobby, than I would definitely recommend starting strength. Forever Young offers a good way too, again depending on your recovery abilities. 5/3/1 can be a pretty low volume program if you skip the assistance exercises. As a beginner I wouldn't recommend more than 3 lifting days a week though. There's more than one way to skin a cat, but those two programs are pretty basic and proven to work extremely well.