I would opt for a short ester injectable like mast prop or npp, id 100% avoid deca or eq becauseof how long they linger around.
If going for orals I'd pick moderate dose of var or tbol 30-50mg a day
Sarms lgd or rad 30mg a day (I'm not opposed to 50 but for some reason No one has a problem running 50 mg of the Anadrol or tren ace per day but 50mg of a sarm is crazy to them)
Or if funds allow, and you can source hgh, 3iu a day along side a little test and npp could go a long way.
Then there's peptides, I'm a fan of a few but they don't do what hgh does.
Plenty of options