FanDuel is the best option right now IMO. Their app is rated 4.8 on iOS for a reason – super clean interface and rarely crashes. The Bet $5, Get $200 in bonus bets promo is easy to hit since you just need your first bet to win. They also have daily odds boosts that are actually valuable. For today (May 15th), they have a 30% profit boost for NBA Playoffs parlays and a 25% boost for NHL Playoffs parlays. Their cash out feature is also the smoothest I’ve used.