Unitarian-Universalist and Episcopalian seem to be considered the most, er... 'accommodating' Christian churches in the US. My twin sister and her husband belong to a local Episcopal church, I think. They seem to have an "everyone is welcome, whatever you believe" type of attitude.
"Well, evolution is a theory. It is also a fact. And facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that explain and interpret facts. Facts don't go away when scientists debate rival theories to explain them. Einstein's theory of gravitation replaced Newton's in this century, but apples didn't suspend themselves in midair, pending the outcome. And humans evolved from ape- like ancestors whether they did so by Darwin's proposed mechanism or by some other yet to be discovered."
-Stephen Jay Gould
-Stephen Jay Gould