Kuipers rhymes with:
cooper's, coopers, bloopers, cooper's, coopers, groupers, loopers, poopers, supers, trooper's, troopers, troopers'
Kuipers sounds like:
kasparek, kasperek, kasperski, kasprowicz, kasprzak, kasprzyk, keepers, kippers, koperski, koppers, koppers', koprowski, kosberg, kovarik, kozberg, kuberski, kubrick, kubrick's, kupres