Riordan's rhymes with:
chernomyrdin's, cherumirdan's, arden's, borden's, chernomyrdin's, cherumirdan's, darden's, garden's, gardens, gordon's, harden's, hardens, jordan's, jordans, pardons, warden's, wardens, wardens'
Riordan's sounds like:
radiance, radiating, radiation's, radinka, radomski, raiding, rating, ratings, rationing, rations, rawding, raytheon's, readiness, reading, readings, readying, redding, redeeming, redeems, redenius, reding, redneck, rednecks, redness, redoing, rereading, rerouting, retaining, retains, rethink, rewarding, rewriting, rhythmic, rhythms, riddance, ridding, riding, ridings, rioting, rittenhouse, rittenhouse's, rodding, rodman's, rohatyn's, rooting, rotating, rotations, rothmans, rothmans's, rotting, rottinghaus, routines, routing, rowdiness, rudeness, ruding, rudman's, rudnick, rudnicki, rudnicky, rudnik, rutan's