Hello, I think when it comes to things like that it's not really about your voice, about the annointing, when you have that then God will connect you to who you need to know. I dont mean to sound preachy but if part of fullfilling your purpose is to Sing with choirs such as eg Kirk Franklin n da rest then you wouldn't need to look. It about Letting God lead you and not leading yourself, Sorry to sound all agressive if i do seem it, but when i read i post i felt i had to talk, but stay bless n i hope God creates an avenue where you can "minister" with your talent.
God Bless