Here's what rhymes with hail.
fail sale sail veil shale ail ale vale hale faille male scale mail pale tail tale avail jail nail rail frail gale whale bail stale wail assail bale dale pail snail flail kale wale trail email inhale quail quale braille unveil grail wassail hightail detail prevail entail travail curtail exhale bewail derail mainsail topsail foresail impale taffrail lugsail carrell gunwale pigtail monorail bobtail pellmell hangnail fingernail ponytail countervail swallowtail martingale nonpareil tattletale