Goku's family tree is wilder than a Saiyan power-up spree! Most folks know Raditz as his biological brother—the long-haired, scouter-wearing dude who showed up early in 'Dragon Ball Z' to drag Goku into interstellar drama. But here's the twist: Goku (originally Kakarot) was sent to Earth as a baby, while Raditz stayed loyal to their warrior race. Their bond? More 'hostile sibling rivalry' than 'family cookout vibes.' Then there's Broly, the legendary Super Saiyan from the movies. Technically not a brother in the original manga, but the 'Dragon Ball Super' reboot re-canonized him as a fellow Saiyan from their home planet, adding messy backstory layers. Frieza blowing up Planet Vegeta really put a dent in Goku's sibling opportunities.
Honestly, the Saiyan saga makes you wonder what could've been if Goku and Raditz had teamed up instead of clashing. Raditz might've been a jerk, but his death scene hit different—Goku sacrificing himself to take him down? Peak tragic irony. And Broly's newer incarnation? A hulking softie with daddy issues who just needed a friend. Makes you wish Vegeta counted as a brother too—their frenemy dynamic is basically sibling energy on steroids.