Grobian rhymes with:
cobian, albion, amphibian, arabian, barbian, caribbean, cobian, colombian, columbian, fabian, faubion, gibian, kasabian, lesbian, libyan, mehrabian, namibian, nubian, serbian, symbion, zambian
Grobian sounds like:
garofano, garvin, gerbino, girvan, girven, girvin, graben, graffam, grapevine, gravano, graven, gravina, gravino, gribben, gribbin, gribbon, griffen, griffin, griffon, groben, groopman, groveman, gruben, grubman