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.
garrotte garotte garrote garote garret grotty garred carrot grotto carroty grot grout groat carte grate griot carate grouty quarte croute gritty karate curette carried corrode cowrote grit quarried grat cart kart garda guard greet crate greed gored carat karat grody caret gride grade cared great quart caried curite curate greedy curred cardio gourde gardai create quarto
rotte garrotte garotte rote rewrote protei proette route wrote barrette burette cowrote croute grotto grotty curette protea garote reroute garrote syrette rot