Need help with vocal melody

I’m with 4 projects that are currently on hold. The four songs are produced and have lyrics. I would like to sing them, but I can't create an interesting vocal melody. I don’t have deadline. My songs are about love story between two man. Genre: Eletronic, Pop and Hip hop.

Additional info:
The tracks are cleaned, tuned, and and the song is ready to be mixed. I don't need the song mastered. I'm hoping to find a good mixer that can work with my limited budget. I don't have a hard deadline for this. Check out the song I attached. I need a song written from scratch - lyrics, music, and vocal melody.