At this point man, since it's so narrowed down for you, I would do some research on those 2 items.
SARMS & Prohormones. The prohormones I would look at are 1-andro, 4-andro, and epiandro.
The SARMS to look at will be things like Ostarine, MK-677, Cardarine, etc... I will tell you right now, DO NOT believe the hype that Ostarine is a miracle steroid with no side effects and nonsuppresive to your natural test because it is.
A stack of 1 and 4 andro would be plenty. A stack of of 1, 4, and epiandro would also be great, but you need to look into what each of them do and decide what's best for you.
Want to just put on size? Then eat like a horse and do a 1 and 4 stack. Wanna cut? Do something like the Ostarine and Epiandro stack. Maybe even add Cardarine to it. "Why those?" - Google it.
I'm all about helping pointing people in the right direction, but I did a crapload of research before I got to the point where I wanted to ask questions.
This is stuff you don't want to take lightly.
DO NOT START A CYCLE, WITHOUT HAVING YOUR ON CYCLE SUPPORT/PCT ALREADY IN HAND!! I've seen so many threads started of guys saying "Hey I think I have bitch tits, what do I do?" and then you're playing catch up on symptoms. Don't be that guy.