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.
serries series seres serais sris sers sirrees sauries seeress surreys sierras serious sears suers ceres sires sores seers saris serous sarees serosa cereus sieurs surras zeroes serows sirees sirras cerias sorrows sirrahs soirees souaris serosae sirs cires zeros ceros sours cerci soars saros suras xerus soras sorus zoris cerous cirrus surahs zaires cirrous
berries lorries cherries hurries corries quarries terries wherries gurries jerries murries gharries perries ferries worries sherries tarries whirries marries serries derries kerries harries curries durries carries parries herries bries sirrees wries caries diaries cries furies rares tories murres varies curies morris juries paries sauries barrios dowries dairies veeries gharris dearies kerrias orrice queries series bourrees eyries wearies arris faeries lories aeries fairies dories tries peeries orris buries barres tarres pries kauries dries murreys derris fries surreys cowries chirres kyries sherris res