Hello, it's already a nice song, so I can only agree with the other. You already have a vocal offer. However, I cannot imagine how you want to implement the vocals without more precise requirements. Do you have a melody and a text?. Or do you think of singing improvisation? I would personally see improvisation as the worst option because you have already invested so much in the song. In my opinion, you should keep the scepter in your hand and say exactly what you want and how you want it. Anyway, I wish you every success!
Greetings Manuela

nice track bro, i too do subjects that people shy away from.
this is my latest in featured, it ties in nicely with your theme if you would like the vocal or part of, im cool even a feature. let me know. otherwise great work anyways
https://www.looperman.com/tracks/detail/243350

Hey, I can sing on this track

I like it pretty much as it is bro. Love the lyrics and your vox sound really good and genuine. A serious subject too, especially in good ole NZ with our atrocious stats on suicide, particularly teens and young adults. Nice work.