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.
tercet tierced teariest terraced traced triced truced tryst trust truest trusty tressed triacid trustee tourist turista tarriest torosity tourista touristy
tercet farced surest sourced serest rearrest poorest purest airest nearest arced arrest barest fairest tierced drest sheerest direst rest forest merest sourest sorest searest rarest pierced prest queerest crest forced corset coerced verset wrest dourest worset dearest yarest
terce terse tetris terais terrace terras terrazzo terries tears tiers tierce trace trice truce stereos steres tetras uterus