Keeper rhymes with:
keiper, kieper, beeper, cheaper, deeper, keiper, kieper, leeper, leiper, neeper, pieper, reaper, scheper, schlieper, sleeper, steeper, streeper, sweeper, teper
Keeper sounds like:
kafer, kapfer, kapoor, kapor, kapper, kapur, kaspar, kasper, kaufer, kaypro, keefer, keever, kefauver, keffer, keifer, keiffer, keiper, kever, kiefer, kieffer, kieper, kifer, kiper, kipfer, kipper, kippur, kober, kochevar, koper, kopera, kopper, kovar, kover, kuiper, kuper, kupfer, kupor, kupper, kuyper