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.
toilets toilettes tilts tildes toledos dolts toluides tillites toluates toluids dilutes teledus dilates dildoes deletes tallits delts dualities dildos daledhs delates deleads deludes tuladis
toilets filets lets bleats billets ballets leets howlets bluets jilts cleats culets galletas quillets muletas gullets millets owlets pallets pilots pleats relets sallets sleets tildes gleets boletus willets chalets lilts boletes guilts mallets quilts fillets kilts fleets valets violets hilts gilts bullets callets collets cullets wilts wallets gallets blets milts mullets palets pellets piolets pullets rillets silts deletes tilts childes
toilet toiled toilette doiled tailed tilde tiled tilled toled toledo tolled tooled stiletto stoled titled