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.
sarape serape sirup syrup sirupy syrupy
crape drape serape sarape rape grape rap grapey hyperope drupe wrap crepe frap pyrope bewrap rope trope grapy tripe frappe trap gripe grope towrope cripe drapey crap ripe rewrap reap sharpie
saree sari saury sear sera serai soar sora sura surah osar tsar