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.
cyber saber sober suber sobber ciboria
cyber fibber nabber ribbier liber lubber goober rubber robber rubier cobbier gabber jobber sober saber dabber caber jabber daubery giber dibber jibber dubber hobber tubber fiber tuber gibber weber knobbier shabbier nubbier bear beer cobber ribber nobbier ribier lobber mobber libber rubbery robbery fabber cuber gabbier jobbery suber sobber bobbery dauber bier daubier babier dobber jiber taber bibbery tubbier bobber webbier bibber chubbier knubbier yabber