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.
gorses corses grasses grouses greases grosses courses griseous carses grosze cruses krises graces crases grazes crises curses cruises kerseys crosses coerces creeses creases cresses karosses caresses carouses grosz cuirasses crasis cruces crisis crazes groszy crozes crazies grecize coryzas carices curacies gracioso gracious graecize grazioso
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
gorsy gorse cors corse gars goers gores grass grassy gross kors agoras