I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
curious curios curiosa carious crouse curies curs crus cris carouse curries currs cross crows curse gurus kurus cruse cures cries cruise crosse kauris guiros course kouros grouse caries crissa kauries cowries queries gurries corries cuirass carries cors kris cars curassow quarries crews grows cares cores croze craws carrs gross guars croci crass cress carse corse gaurs coirs queers coarse cressy curacy karoos kaross creasy kyries creese crease cooers caress quires karroos kerrias kerries quaeres queuers
furious carious curious various serious triose torous ferreous serous curiosa cirrous aurous rearouse furioso parous carouse arouse brios hydrous arioso ariose trios vrouws ferrous curios roues cerous grouse barrios rouse ariosi crouse porous cheerios
curio curia curiae curie currie cur