Extreme Metal songwriter

We're looking for a songwriter for extreme metal going to the direction of Behemoth, Belphegor, and the Black Dahlia Murder. Happy to share our songs and the guitar pros upon request. Thanks!

Additional info:
I'm not sure yet if I'd prefer ‘work for hire' or am open to sharing publishing. Can you quote for both situations please?. The vocals will be used in a commercial release. I'm an independent artist not affiliated with a record label. I need a song written from scratch - lyrics, music, and vocal melody. Check out what I uploaded.