Rigdon rhymes with:
higdon, abingdon, bagdon, blagden, bogdan, bogden, bogdon, bragdon, brogden, brogdon, congdon, higdon, kingdon, langdon, ogden, sugden, trogdon
Rigdon sounds like:
ragtime, reaction, recitation, recoton, rectum, rejection, requisition, restaino, restitution, reston, resuscitation, ricadonna, richstone, richton, rigatoni, risden, risdon, riston, rocketdyne, rosten, roston, roughton, royston, rushton, rustin, ruston