Dragon Ball Z: Ikari Revolution
Reborn in Dragon Ball as Vegeta's untalented younger brother, Tarble is immediately beset with a test. The price of failure: ...Survival?
With two years to make his choice, and four until Planet Vegeta meets its end, Tarble makes his choice.
To live with pride. To struggle and fight for his own happiness in his own way, no matter how much he has to fight and claw his way out of the depths of his own Saiyan legacy.
With his team by his side, Tarble must prove to the world, and himself, that his Saiyan pride is strong enough to forge the path he chose.
(As with The Core, this story has no guarantee of following or being completely accurate to the anime, manga, or any of the movies, as I claim no ownership of Dragon Ball.)