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.
snore senor snare senior senora synurae sneer sonar saner sneery sunray seiner sooner sinner synura senary scenery senarii sunnier scenario
snore nor tenour donor senora honoree snare senor pawnor nori enure venire honor honour senior genre inure junior canoer coenure manor manure minor noir tenor tenure