Underdog is a well-known and reliable fantasy site, offering a ton of boosts and existing user promotions in addition to its “play $5, get $100 in bonus credits” welcome bonus.

There are still two games remaining on the Week 7 NFL schedule, and the latest BetMGM bonus code CBSSPORTS gives new users up to $1,500 in bonus bets back if their first bet loses or $150 in bonus bet...