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.
carses carouses caresses crises curses crases cruses corses crosses creeses carices cresses cruises creases courses karosses carassows crozes crisis crazes cuirasses crasis krises cruces gorses coerces grouses crazies grasses grosses kerseys greases curacies griseous curassows graces grazes grosze coryzas
arses parses torses perses verses nurses hearses bourses purses marses birses erses worses corses carses burses curses courses horses gorses arrases brassies rouses rooses phoresies furzes coerces varuses foresees arises viroses pharisees reissues heiresses versos pierces saroses phereses jerseys brises boreases harasses peruses frisees kerseys gyrases soroses rearouses roses prosses ruses orrises karosses bursas charases chorusses xeroses derrises diereses dresses drowses duresses whereases tarsus resews trasses trioses uraeuses ureases terrases pharoses cerises rases creeses erases grouses braises cresses lorises rerises rises prissies crosses prases hybrises brasses carouses cereuses crises parises cruses proses neuroses crases eroses reraises heresies caresses praises cruises browses reassess merises grosses viruses resees phrases brisses raises forces peeresses fraises morrises irises creases versus pareses grasses frises frasses broses krises prises prisses prossies sources greases ceruses reuses bruises pursues farces merces arouses morasses cuirasses presses arsis wrasses diaereses tresses choruses arrises seeresses uruses urases trusses torsos xeruses tierces terces hydrases druses drosses diureses sherrises
cars carse scarious scares acarus curse cruse crosse crissa cressy cress crass corse cors coarse carrs carries carouse carious caries caress cares carassow cris cross crus curs gars scarce scariose scars