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.
prosed parsed prised pursed prosody prissed perused prostie pursued pressed proceed praised prost prosit priced periostea prized preset preside precede pierced persuade porosity parasite presidia prest praesidia prussiate purest presto prosciutti purist priest prosciutto peracid poorest pursuit presidio
roosed prosed rosed prissed horsed coursed braised harassed reissued rased raised burseed reused crossed cuirassed reseed grassed grossed nursed perused pressed pursed rearoused dressed tressed chorused phrased reseda caressed versed drowsed roset pursued arrased cruised creased browsed bruised erased aroused reraised caroused trussed irised cursed brassed greased groused parsed praised prised hearsed roused chorussed
pros prossie proso pross prose prosy presa uprose prase pursy proas purse prise prows parous prese pars parse perse press prissy priss purs praos pursue porous pyros porose uprouse