Sinkhorn rhymes with:
eichhorn, blankenhorn, cleghorn, eichhorn, gleghorn, hirschhorn, kinghorn, mehlhorn, melhorn, milhorn, mulhearn, mulhern, schellhorn, schermerhorn, sehorn, shehorn, shellhorn, stellhorn, strayhorn, trahern, tuxhorn, ziegenhorn
Sinkhorn sounds like:
semegran, singerman, smokescreen, sonogram, sunscreen