Here's what rhymes with sonjohn.
von hon fawn han schon sawn sonne faun don non gone con dawn lawn yon wan bon pawn spawn swan yawn bonne khan vpon john gnawn upon drawn thereon salon foregone yuan exon brawn chiffon forgone prawn amazon hereon lasagne baton pantheon whereon echelon marathon begone chaperon pecan tenon aileron antiphon autobahn neocon frogspawn methadon phenomenon undergone withdrawn thereupon polygon automaton denouement hexagon octagon redrawn hereupon overdrawn epsilon mastodon predawn tarragon woebegone cordovan trimaran upsilon outdrawn whereupon lexicon positron paragon pentagon carillon heptagon emoticon rapprochement leprechaun pantechnicon Words that almost rhyme with sonjohn
song homme vom som thong long wrong com calm bomb palm mom bom throng balm gong nom rom tom dong mam pom pong singsong tong bong sarong iamb along strong quam prom prong twang embalm qualm salaam consomme mahjong belong lifelong aplomb erelong nightlong firebomb becalm dingdong prolong intercom pogrom livelong yearlong supermom cardamom horn thorn shorn born corn borne torn worn barn warn scorn sworn yarn morn mourn darn porn tarn lorn adorn forlorn unborn forborne forewarn forsworn unworn reborn outworn timeworn foresworn lowborn firstborn stillborn unicorn waterborne careworn lovelorn sweetcorn peppercorn