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.
prosses prossies proses prisses presses prissies perses prases purses prises parses prosos peeresses pursues process praises parises pareses peruses pyrosis prezes prices prizes precise paresis pierces precess piracies precious precieuse precis
crosses drosses prosses grosses karosses reassess presses pharoses neuroses caresses brasses heiresses roses prissies cresses brisses arouses broses xeroses brassies reissues eroses browses wrasses duresses trasses trioses worses grouses proses carouses peeresses dresses soroses prossies frasses rooses morasses corses rouses cuirasses seeresses saroses viroses rearouses gorses horses harasses grasses prisses drowses torses tresses trusses chorusses
prossie pross pros porose praos press priss prissy proas prose proso prosy prows pyros uprose