Sletten rhymes with:
baeten, betten, betton, breton, bretton, jetton, kveton, margaretten, netan, retton, threaten, tibetan, vanetten
Sletten sounds like:
saladin, saladino, salatino, saldana, salton, schlottman, scholten, schooltime, schulten, scialdone, seldane, selden, seldin, seldom, seldon, shackelton, shackleton, shelden, sheldon, shelton, skeleton, skelton, skilton, slaten, slaton, slatten, slatton, slayden, slaydon, slayton, slowdown, soldan, soldano, solution, sultan, sulton