Looking for various vocalists to do a hook and a few verses on some rap songs

I am currently working on an EP which is upcoming soon, and I am looking for vocalists in the rap genre who can help me finish these projects. I can mix and produce, I just need a main hook, a few verses for various songs and ad libs.

Additional info:
I need just the hook or chorus recorded. The song will be released commercially. I'd like to use your name as the vocalist. I need help writing both lyrics and a vocal melody. I'm hoping to find a good singer who can work with my limited budget. I don't have a hard deadline for this. Check out what I uploaded. I'm an independent artist not affiliated with a record label.