Heaven's rhymes with:
heavens, bevans, eleven's, elevens, evans, evans', heavens, leavens, seven's, sevens
Heaven's sounds like:
haifong, happening, happenings, happens, happiness, havana's, havens, having, havins, heaping, heavens, heaving, hibbing, hipbones, hobbing, hobbins, hoffman's, hoping, hopping, hovanec, hovhaness, hoving, huffines, huffing, hyping, hypnosis, hyponex