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.
saloops sloops salps slops saleps salpas slopes slaps slips sleeps slipes slypes
loops saloops bloops sloops lops flops wallops clops slops galops jalops plops elopes gallops lollops loups lopes slopes collops dollops glops shallops