Need a Beat for 1 song

My name is Benz I'm a singer/songwriter and I wrote and recorded a demo/song using GarageBand that I want a professional quality beat for.

Additional info:
The song has less than 10 tracks recorded that need mixing. I'm hoping to find a good mixer that can work with my limited budget. Check out the song I attached. I need the mixer to do some editing, time aligning and vocal tuning before mixing. I don't need the song mastered. I don't have a hard deadline for this.