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.
pursues purses proses parses prases perses prises prosses parises prisses peruses praises prossies prissies prices prezes prizes prosos process paresis precise pareses pierces precess presses pyrosis piracies peeresses precieuse precis
pursues rerises torses purses corses birses brises hearses irises arrises kerseys curses lorises rases phrases eroses neuroses merises frises burses cruces druses choruses urases tarsus peruses hybrises prises bourses worses orrises verses broses ceruses jerseys soroses crases xeruses parses viroses viruses cruses perses morrises nurses erses varuses arrases marses gorses reissues cerises gyrases horses roses arises courses arses truces pharoses krises rises parises derrises crises xeroses carses saroses risus versus charases hydrases ruses proses erases prases terrases uruses sherrises
pursue purs pours puris purrs purse pursy spurs