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