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.
snare sonar snore senary synurae senarii scenario sneer senor saner sooner sunray synura senora seiner sinner sneery senior zonary scenery sunnier
snare enure tenure denary denar sonar gnarr manure lunar quinary kinara coenure canary genre inure venire binary gnar anear near nary knaur knar linear hymnary senary snore zonary denari dinar unary