Harken rhymes with:
barkan, darken, marcon, markan, marken, barkan, corken, darken, marcon, markan, marken, morken
Harken sounds like:
harcum, hargan, harkin, harrigan, harrison, harsham, harshman, heroism, herrhausen, hershman, hersman, hersom, herson, hirosakima, hiroshima, hirschman, hirschmann, hirshman, horgan, horizon, horrigan, horseman, horsemen, horsham, horsman, hourigan, hurricane