Best betting sites & sportsbook promos for NFL Playoffs today + Texans vs. Chiefs and Commanders vs. Lions odds, prop bets & SGP: Claim thousands of dollars in bonuses

Here are the best betting sites and sportsbook promos for the NFL Playoffs today, Saturday, Jan. 18, plus odds, prop bets & and a same-game parlay to consider for Texans-Chiefs and Commanders-Lions.