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.
preside presidio presidia preset praesidia pressed precede prest persuade parasite prussiate parricide priced presto parsed prosed priest pursed prised prosit prized purest prosody pursued perused prissed praised pierced peracid proceed poorest pursuit porosity hyperacid prost prosciutti prosciutto purist prostie
fireside reside foreside preside shoreside resaid resid residue resite farside foresaid nearside
pares peres pores prees presa prese press preys pries pyres apres