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.
beauties beauts beauteous bawties butties butes bates beats buttes buteos betise bets battues bats buddies beedies booties buts baddies bawdies bauds bahts bouts batts baits butts beads boats beets bytes betas bides bites bettas bedews boites bodies boodies bootees biddies buds bads beds bots bids bits bodes botas botts bitsy bawds bidis boots bitts badass biotas
beauties duties cuties dauties ties utes kitties buteos booties cutties fatties bawties butties buttes butes suites dawties jutes gaieties mutes patties putties routes sautes tatties titties tutties gaudies lutes whities chutes jutties pities cooties cities laities ditties potties catties cutes cuteys quiets hotties jetties moieties nudies pieties cutesy cutis reties sties guides footies deities quotes tides tutees tuttis chitties shutes tis uts