Sounds like you know what you want in terms of what to redeem.

Are you asking for help in finding which destinations will have the lowest business class fare?
If so, that is a good job for a travel agent and not a topic for FT.

Are you asking for which location will have the best award availability?
If so, where are you going from and where are you going to? Dates? What locations have you looked at and ruled out?

Start off with a bit of legwork to help narrow down what you need from FT and you'll likely get plenty of help, as long as its not a fare request.