I already have a non-profit set up.
My ministry partner and I are self-employed, and will always generate income.
We want to do it where the corporation takes the maximum deduction to contribute to a qualified non-profit.

What type of corporation would be best for this. The research I have done indicates that C corps are limited to 10%, where the others are up to 50%

Please explain the options, if you can.
The business we are starting does consulting and material supply for builders who work on government contracts.