You just have to stick to legal, regulated online casino sites such as BetMGM, Caesars Palace Online Casino, FanDuel, Betway, bet365 and BetRivers. They offer great casino game ranges and they will pay out quickly and without any issues if you win.
Yes, you can play online slots for real money at licensed casinos in states with legal online casino gambling. These sites offer a wide range of options where players can bet and win real money. These winnings can then be withdrawn from the casino through various banking methods.