I VERY much second the GHRP-6 recommendation.
Burns fat, builds muscle, increases strength, massive appetite boost.
Appetite could be a problem closer to a show prep, but in the off season it would seem only logical.
Safe and effective for women, even more so then actual GH. Steroid usage is very possible for women, but has some risks that while often overstated, are very real.
Few of even the more veteran members here have much USABLE experience with women and AAS. We might know a few gals cycling, and have read up on the subject but we are somewhat lacking in this area.
While a fine board for male steroid information, a more figure and female bodybuilding forum would be of more use to you.
I would look into low doses of pharmaceutical grade drugs, men can afford to be risky and sloppy with our doses, drug choice, and sources.
Accidentally getting a different steroid, or a different dose, or taking too high of a dose, can be more or less shrugged off.
With women, not so much. The margine for error is much higher, so the approach needs to be more elegant.
I wouldn't even bother worrying about drug choice before I found a good pharma source. The only safe pick in an underground lab MIGHT be test prop or another short ester of only test so that if things do go wrong it can rapidly clear the system.
Test is so common and cheap its not likely faked. And properly done, should be fairly safe, perhaps even more safe, even when compared to drugs we often consider "safe" for women like var.
Bill Roberts would be the one to ask in this area.