Keller's rhymes with:
bestsellers, bookcellars, cellars, dwellers, ehlers, ellers, fellers, heller's, propellers, resellers, sellars, seller's, sellers, sellers', spellers, teller's, tellers, zellars, zellers
Keller's sounds like:
kauzlarich, keillor's, kessler's, key-largo, killer's, killers, klarich, klerk, klerk's, kolarik