A GDA will not pack on lean muscle to a noticeable degree.
A natural anabolic, for lack of a better term because they aren't anabolic at all, would be your best bet.
My personal favorite is ArA, followed by Epi.
ABE is also a good natty supplement and has nutrient partioning properties
X-Gels is the best natural supplement for strength. Adding OL Triumph gives you an emulsifier (soy lecithin) and a carnitine salt (LCLT) to maximize your run. Take 4-8 pills preworkout on an empty stomach and enjoy the gains. Only take on workout days and dose at least 4 hours away from joint supplements and anti-inflammatories.
CEL Epi-Plex is a very reasonable Epi product. Epi will increase endurance. It makes me sweat like crazy and I burn more calories on it.
ABE will also stack with the above two and is synergistic with X-Gels. Plus it has the GDA type properties you mentioned.
Laxo is another natty product people enjoy. I think OL strength unleashed is the best you can get for that.
EvoMuse BMP and Myosynergy Elite is a potent stack. There's currently a nice sale on BMP powder (not capped) on EvoMuse store page.