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.
peruse perse pears prose peris piers praus purse prase prese peres parse peers prise parous porose praise hypers pierce pareus porous peeress peeries perries purs pros pars proas prows prees purrs pyres preys paras pairs parrs paris pours priss pores pares press praos prosy pursy proso puris presa prays pries pross pyros pareos paries pooris prissy purees pariahs parries
ruse peruse druse cruse ceruse birse corse rase frise brose varus horsey carse xerus crouse jersey gyrase bruise pursue grues gyrose purse pareus erose cirrous bursae erase perse rise terse chirus urus serous urase trues rerose torus torous grouse hydrase gyrus curse nairus praus crus rearouse course morose gurus rues cerise rerise prise morse cereus kurus cirrose rose aurous arse parse hearse gorse marse kersey sorus porose reuse burse prese prase porous horse carouse ferrous rouse hoarse bourse aureus coarse arise parous cirrus cruise verse nurse prose arose arouse cerous phrase virus hydrous torose torse truce truss ursae worse chorus
per pear peer peerie peery pere perea pereia peri perry pier prau aper apery opera sprue