Louisianians rhymes with:
indianians, indianians, albanians, amazonians, argentinians, armenians, athenians, augustinians, babylonians, bosnian's, bosnians, bostonians, caledonian's, carolinians, chechnyan's, chechnyans, estonians, finian's, indianians, iranians, iranians', jacksonians, jeffersonians, jordanians, lithuanians, oregonians, orleanians, palestinian's, palestinians, palestinians', panamanians, pennsylvanians, romanians, smithsonian's, stepanian's, ukrainian's, ukrainians, washingtonians
Louisianians sounds like:
lachance, lacking, laconic, lagging, lagoons, lagunas, lajeunesse, lakins, lakshamanan's, lashing, lashings, laughing, laughinghouse, lawlessness, lawson's, laziness, leaching, leachman's, leaking, leasing, leasing's, leeson's, legging, leggings, legions, legumes, leising, lesinski, lesions, lesniak, lesnick, lesniewski, lessening, lessens, lessing, lessness, lessons, leszczynski, lexicons, leysen's, li-kang, liaisons, licence, licences, license, licensee, licensees, licenses, lichens, licking, liggins, likeness, likenesses, likening, likens, liking, likins, locking, lockneys, logging, loggins, logjams, looking, loosening, loosens, loosing, losing, losinski, lossing, louganis, louganos, louisiana's, lousiness, lozano's, lozenge, lozenges, lozinski, lucking, lugging, lukens, lukins, lusinchi, lycoming, lykens, lykins