I may be be biased because of my military background, but I don't think he needs to bulk up. He just needs to pt (physical training) everyday and increase his testosterone. Back when I used to wrestle and box in the military, aesthetic muscle meant nothing. The most ferocious guy who intimidated the entire platoon was a lean 5'8 160 lb guy. Even the officers who did multiple tours in Iraq were intimidated by him. When he took down a guy who was 6'2 225, everyone was shook.
And of course, he also cleaned up with women.
I've noticed that testosterone, keeping a low body fat, and being a lean and mean motherfvcker with functional muscle is underemphasized on this forum. People are more concerned with aesthetics.
But trust me when I tell you that women can spot a bada$$ from a pretender. I know a computer programmer who packed on 25 lbs of muscle from a doing a cycle of testosterone and DBOL. He still has a nerdy looking face and a timid vibe. And he still can't get laid. He probably would have been better off taking a military bootcamp. He looks completely incongruent with his bulging muscles and beta/nerdy presence. And he still gets picked on by guys half his size. Nobody is fooled by his superficial muscles. It's your presence that attracts women and intimidate men. And your presence is the totality of you, not just what you do 30 mins in the gym.
When I came out of the military, my bone density became thicker, jawline became more pronounced, cheekbones sharper looking, and my neck got thicker, even though I didn't gain any additional weight. These are things women notice. They notice subtle masculine characteristics caused by high testosterone, not just puffed up chests and biceps. Basically I look like a guy where if you were to fight me, you would have to prepare to go to the death.
Biggoal looks like he's never been in a fight in his life. Lifting weights is just superficial change. He is better off learning MMA, taking a psuedo military bootcamp and learning values and discipline (some cities offer this), and competing in masculine activities like sports or fighting.
He needs to change his entire presence and disposition form momma's boy to harda$$ man.
There is something very primal that women like if you look like a guy who can handle himself should total anarchy arise.