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.
hydrids hydrides hydroids droids druids derides druidess hydrates triads dreads droits triodes dirties dorados toroids diorites darts dirts drats turds derats traits treads derates tardies territs
hydrids rids borides aroids rides corridas grids marrieds myriads bourrides sciurids droids hydrides braids druids hydroids triads periods raids derides grides viroids hayrides irides irids jerids jerrids joyrides hybrids queridas murids nereids prides brides toroids choroids
hydrid hydride hydrate hydroid