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.
territs terrets traits turrets trots tarts trets torts derats droits triads treats tortas tarots trouts derides triodes teredos toroids diorites treatise treaties tortuous darts dirts drats turds droids tortes trades treads druids derates dirties hydrids tardies tirades
territs worrits yperites writs veritas barrets brits barites neuritis pierrots lariats parrots riots grits cerites garrets diorites crits terrets carrots traits heriots britts bruits writes kraits fritts norites jerrids pyrites frits fruits ferrites ferrets frites merits peritus burritos turrets griots iritis rewrites curites sorites cowrites droits caritas rites verites chariots