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