Missourians rhymes with:
aeriens, algerians, assyrians, austrians, barbarians, bilzerian's, biospherians, bulgarians, cambrian's, carrian's, centenarians, contrarians, disciplinarians, dorians, hadrian's, historians, humanitarians, hungarians, ivorians, kazarian's, kerkorian's, liberians, libertarians, librarians, marian's, marion's, nigerians, parliamentarians, pedestrians, presbyterians, seminarians, singaporeans, syrians, totalitarians, vegetarians, veterinarians, victorians, zairian's, zairians
Missourians sounds like:
maccormack, majoring, mammograms, mascarenas, massacring, mccormac, mccormack, mccormick, mccormick's, mckrinkowski, measuring, micromanage, micromanages, micron's, micronesia, micronic, micronics, microns, migraines, mongering, mushrooming, mushrooms