Here's what rhymes with longform.
form farm harm forme warm charm inform storm norm swarm dorm nonfarm perform reform uniform alarm conform forearm disarm deform firearm rearm yardarm overarm transform chloroform lukewarm preform underarm vermiform rewarm cuneiform fusiform cruciform multiform outperform schoolmarm misinform thunderstorm nonuniform Words that almost rhyme with longform
horn psalm thorn shorn born corn borne torn worn barn warn scorn sworn yarn morn mourn darn porn tarn lorn adorn forlorn unborn forborne unworn lowborn reborn outworn unicorn forewarn forsworn timeworn firstborn stillborn waterborne careworn lovelorn foresworn sweetcorn peppercorn homme vom som com calm bomb palm mom bom balm nom rom tom dom mam suam pom iamb quam prom embalm qualm salaam consomme aplomb firebomb becalm intercom cardamom pogrom supermom