Produce an emotional Theme song for movie project

Hi. We want to create 8 theme songs from 8 different artists for an emotional/sad/heartbreaking LGBT movie series. Each episode is 50 mins long and there are 8 episodes. The theme song should be 3 mins long and singer should be male with voice as clear spoken and singing English language. Song should be slow. Sample of these can be seen in brokeback mountain, Titanic and Fast and furious movies. We would tell u what each series is about so it can guide you towards the lyrics to use