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.
sault salt salty sallet saltie salute silt slot slat slit slut slaty slate sleet salad silty slutty solute sleety slitty souled solate sailed sealed slatey zealot sallied sellout sullied celt sild sled slid sold
vault fault sault gault alt fealty malt halt moult cauld poult valet culet faulty salty vaulty zealot chalet shalt guilt dealt culti cult alto auld fauld lealty quilt malty built flauta rialto realty alit salt palet chalot yauld
saul sal sail sale sall sallow sallowy sally seal soul sully sulu saucily