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