Galen's rhymes with:
venezuelans, alan's, allen's, allens, angolans, boelens, brooklyn's, callens, chamberlain's, chaplains, cullens, dillon's, disciplines, dollens, dylan's, dylans, ellan's, ellen's, felons, franklin's, gallons, gillen's, gremlins, guatemalans, helens, hulon's, jocylan's, kaplain's, kaplan's, macmillan's, magellan's, marilyn's, marlens, marlins, marlins', mcfarlane's, mellon's, mellons, melons, mullens, penicillins, pollens, porcelains, posluns, saelens, scanlon's, sullens, talons, valens, venezuelans, villains, watermelons, wellens, wellons, willens, woolens
Galen's sounds like:
galang, galanis, galanos, galinski, galinsky, galleons, galling, gallinsky, gallons, gasolines, gehling, gelinas, giggling, gillen's, gillings, gillins, giuliani's, glance, glances, glancy, glanz, gleaming, gleams, glenn's, glens, glines, glinka, glinski, gloaming, glomski, glonass, glowing, glunz, glynis, glynnis, golinski, gollnick, golonka, guilliams, guzzling