I'd just give them Supernatural Condition, Chi Manipulation and Super Form.
My maternal grandfather: Regenerative Healing Factor. Hopefully he'd beat his lung infection that way.
My maternal grandmother: Heat Generation. She's a baker, so I imagine she'd find it useful.
My paternal grandmother: Supernatural Balance. She's got a balance problem so I imagine the two would cancel each other out and leave her at her normal self.
My dad: Peak Human Condition. He's always worked as hard as he could. I imagine he'd like to see that hard work work harder.
My mom: Anger Empowerment. It just fits.
My older sister: Art Manifestation. She's a really good painter.
My younger sister: I genuinely can't think of anything besides Musical Empathy.
My younger brother: Enhanced Athleticism. It just fits.
What do you think?