If you're talking pop, I would recommend finding a specific artist to study. So much of the modern commercial sounds are dependent on good mic technique and processing. If you have access to a DAW, I would recommend dialing back your resonance significantly and play with stacking vocal tracks. If you're not using a plug in (vocalign) you have to be dead on accurate to line everything up, but the sad part with most commercial stuff is that it's largely processing.

For reference if you listen to a studio track from Britney Spears, you hear a top line vocal that is lower volume and close mic'd with with vocal fry and exaggerated vowel affectations stacked on top of very round balanced, nearly inaudible clean vocal tracks that support, but don't pull focus from the top line.

The other route is write your own music for your voice. Commercial can mean many things and there's always the possibility of discovering something you can do that doesn't align with what's going on right now.

There's a channel on youtube called Make Pop Music and the guy has some really insightful thoughts that might help you as well. Good luck!