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.
trainer drainer turner trinary turnery darner droner drowner ternary
grainer drainer trainer prawner yarner darner furriner mariner loriner learner groaner grinner rainier ruiner brinier briner branner brainier garner earner grainier warner yearner
train trainee drain tranny triene triennia trine triune tyranny strain