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.
psoae psoai piso pase pace pose peso pause paise paseo peise paisa peace passe posse poise pacey pease passee piazze pus poussie pes pas psi pis pows pays peas poos pews pias hyps pice pies pass paws piss pehs posy pees puce pois pacy puss