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.
montes mondes mounts mantes monades minutes mentees mints mannites monetise monodies manatees monetize manteaus mounds mondos mantas mantis manats monads manitus mantuas minuets maenades maundies mantissa mends minds hymnodies maunds menads maenads manitos mehndis menudos manitous
antes pointes contes rentes quintes yentes montes mantes gentes kentes pontes annuities intis antas points founts manatees quinnats counts lunts lunets notes binits annates gannets ants vanities senates lenities quints gunites dinettes joints cantos cents mints lints pintoes nineties bints cants centas bonitoes cunts knits pinots bannets runts mantis pantos finites sneds sonnets juntas gahnites nates dunts sanities genets teentsy snots denotes minutes unites dainties puntos units wants chanteys chants scents chiantis doughnuts shanteys shantis yentas tannates dunites banties donates rants reunites canities phenates lunettes sennets giants linnets tints pants tents quants mentees bents bonnets lenites bennets punnets penates sienites antis nets counties neonates centos giantess kainits peanuts lentos haints phonates cenotes kainites pinites gents punts jaunts ruinates nonets sondes genettes sinuates dents contos hunts hints aunts vents nites faints aunties rennets feints bunts keynotes juntos hants haunts quintas pints bentos cantus nuts gnats jennets panties coonties fonts enates tenuities bounties rents qanats nits mantas vaunts hyphenates hents mounts mondes tenets mannites countess antsy manats bionts connotes paints sennits dints duendes dunnites pintos saints punties taunts snits daunts knots tonettes suints unities taints unties wonts chanties santos chaunts donuts chints shanties shunts pintas
monte monad mound mooned monody monied mondo monde moaned manta minty mint mentee menta mantua manteau mount