Many times I have been asked that from my disappointed friends who have lost a lot in our city biggest casino and I have always recommended what I believed to be the best casino of the moment. Lately though I only recommend the one in my signature which is more focused on sport betting which in turn have better chance to win compared to slots. I never recommend anyone to play slot machines, they are the cancer of gambling, you think you are free from them but in reality you never are.
And friends think that they will get a different result in an online casino, if they were disappointed in a big casino, then they chose games in which it is very difficult or almost impossible to win (maybe these are slot machines), and if they come to an online casino and continue to play slots, then this will not change anything, the result will be the same. You place bets because you understand what you need to bet on, but if this is something new for them, then it will be just as difficult to win.