Currently, only six states offer internet casino gambling: New Jersey, Connecticut, Delaware, Pennsylvania, Michigan and West Virginia. (Nevada offers internet poker but not online casino games; Rhode Island has passed an online casino bill, but it is not expected to go into effect until March 2024.)
Since they're licensed and prominently display a seal from state gambling regulators to prove it, BetMGM, Caesars Palace, DraftKings, Golden Nugget and Borgata are among the most trusted online casinos.