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.
souse sous sos soys suss sows sues sauce sis size sass says saws seas sice sews seis sees cess syce
bouse louse touse house mouse youse souse douse chouse rouse use ose nausea cosie douce mousse moues cause bousy loose goosey ruse lose hosey choose moose reuse pious pose hoise rose noose dose noise choosey whose muse yous lowse cosey owse nose hose meous bowse nous nosey lousy guise fuse louis sous miaous poise dowse pause goose fusee fosse causey posse roues mousy roose mosey mousey chowse chose
sous souse sou sos louse yous lousy douse bouse sues mousse sows bousy house kousso mousy mouse mousey nous soys poussie suss rouse touse rousseau youse