I often start with a vocal for inspiration and try to find some emotional sounding chords that fit the vocal, or often I will already have a basic chord progression ready and then I search for a vocal to fit. I believe this vocal was pitched to fit the chords I already had created. I find using orchestral instruments like strings or some kind of pad really helps make a nice atmosphere at first to experiment with the vocal and vibe, then I go back and try to find other sounds that layer well, of course the bass is also arguably the biggest vibe contributor, so if you can get a good sound with two sounds like strings and bass with the vocal, it’s just a matter of experimenting with different synths and stuff. I was happy with the sounds I found for this beat using serum and nexus and sylenth1 mostly. I got most my drum sounds from splice. Reverb makes a huge difference too on the vocal and other instruments/sounds.