Davidian's rhymes with:
davidians, davidians, davidians, davidians, didion's, floridians, meridian's, accordions, arcadians, burgundians, cambodians, canadian's, canadians, canadians', comedian's, comedians, custodians, davidians, didion's, floridians, guardian's, guardians, indian's, indians, indians', meridian's
Davidian's sounds like:
davidians, debating, debuting, defeating, deviating, deviations, devoting, diphthong, dividing, doubting