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.
shout shut shot shoat shute shote shoot shott shat shod shit chott chute shoed sheet shitty shoddy shooed shadow shadowy shittah chat chit shad shed
shout hot out hut gouty shut shote gout shott pout shot knout shoat lout chott hoot pouty route phut photo phot ghaut bout rout tout chute haut shoot shute
chough shaugh sheugh shoe shoo show showy choush sheuch shush