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.
hairiest hoariest horst hurst horste hearsed hirsute harassed horsed
wriest teariest fieriest tarriest goriest burriest miriest sorriest furriest merriest aeriest hoariest priest chariest wariest firriest veriest charriest hairiest beeriest leariest weariest mooriest eeriest driest cheeriest airiest leeriest wiriest rest arista jurist serest crista dourest barest searest reest wristy purist reset preset rarest verist lyrist poorest arrest forest freest merest dearest wrist aristo airest sheerest triste resat direst truest diarist fairest sorest sourest tourist resit presto surest rearrest aurist grist nearest drest prest crest touristy breast purest tourista barista turista aorist queerest christy wrest querist yarest