BetMGM has been my go to casino for about 6 months now and their current welcome bonus is pretty solid – up to $1,500 back in bonus bets if your first bet loses. The app is really smooth too, 4.8 rating on iOS. What I like most is that if you lose a bet over $50, they give you five separate bonus bets (each worth 20% of your original wager) instead of one lump sum, so you can spread out your recovery strategy. The only downside is the 7-day expiration on those bonus bets, but that’s pretty standard across most platforms.