Historian rhymes with:
nestorian, nestorian, praetorian, salutatorian, torian, torreon, valedictorian, victorian, delorean, dorian, ecuadorean, ecuadorian, florian, gregorian, hyperborean, ivorian, kerkorian, krikorian, lorean, nestorian, praetorian, pythagorean, salutatorian, singaporean, torian, torreon, valedictorian, victorian
Historian sounds like:
hackathorn, hagadorn, hagedorn, haggstrom, hagstrom, heckathorn, hegadorn, hegstrom, hosterman