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.
tegs teggs teguas tugs tags togs teaks degas tykes takes togas tikes tokes togues tuques taigas toques tekkies degauss tics dogs dags dugs digs decks dukes ticks takas tikis dagos tacks decos dikes dykes tucks dekes tacos
begs kegs legs megs negs pegs regs segs tegs