Fiction rhymes with:
crucifixion, nonfiction, addiction, affliction, benediction, constriction, contradiction, conviction, crucifixion, depiction, dereliction, diction, eviction, friction, infliction, interdiction, jurisdiction, nonfiction, prediction, restriction
Fiction sounds like:
facedown, faction, fasten, faustian, faustina, faustine, faustino, festoon, fightin', fixation, fochtman, fuston