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.
jockos jocks jocose jockeys jacks jokes jouks jucos geckos jackies geckoes jackass jogs gecks jakes jauks jukes jukus
buckos wackos jockos whackos geckos shackos sickos kos cos bocks bucks nicks fucks mucous hoicks hicks quicks coss koas kecks koss kois shackoes kicks packs jocose becks cosy makos mucks socks licks jacks sacks hacks locks fecks dekkos ducks yoicks yacks shocks shakos shacks chocks chicks wicks geckoes coys tucks tacos decos wrecks dioicous nocks rocks sucks racks bookoos ruckus pocks cows ficoes micks lacks recks lucks locoes buckoes backs cogs wricks cocks scows necks rucks pucks gecks cocos fucose cuckoos pecks picks fucous mucose cacaos pekoes knacks jucos hocks wackes hecks cocoas wacks hucks coos decks quacks wracks locos mocks gucks ricks mucosa knocks guacos jocks sicks macks boocoos decoys soukous dicks docks tacks ticks whacks checks chicos chucks raucous shakoes shicksa shucks yocks yucks
jock jockey jocko jack jacky joke jokey joky jouk