Rencen rhymes with:
bensen, benson, carstensen, denson, ensign, genson, hensen, henson, jeansonne, jensen, jenson, jenssen, penson, stenson, svenson, svensson, swensen, swenson, venson
Rencen sounds like:
ramaswami, rangoon, rankin, rankine, ransom, ransome, ranson, ransone, remission, remsen, remson, renison, renken, rimson, rincon, ringeisen, ringen, ronson, rumson