A model needs a readable silhouette before it needs dramatic lighting. Begin with one large Area light and a neutral background.
Place the key light slightly to the side and above the object. A large source produces broad, soft transitions; a small one emphasizes hard edges and surface texture. Adjust the source size before increasing its energy.
Metallic materials need something to reflect. Add an environment or broad studio lights instead of compensating for a black metal surface by changing its base color. Check roughness: a small adjustment can change the entire impression of the surface.
Add a weaker fill only when shadows hide important details. A rim light can separate dark edges from the background, but it should support the shape rather than outline every object equally.
Compare results at the same exposure and color-management settings. Save a simple test scene and use it to compare assets before placing them in a complex environment.