I don't understand why people say "play it for fun, not for the money". If you don't want money, why are you not playing cassino at mobile apps that you use only play money? Just play casino games with real money if you want to test your luck and if that money is not important for you, but put in your mind that you will never beat the casino, this is easy to prove with math.
People sell the illusion of getting a jackpot or something like that with a small amount of money used to do it, but this is ridiculous.
That's why I would only say to people to play mind games, like Poker, but, if don't want to play that kind of games, you can gamble at sports, even knowing there's a lot of things you can't control there.
At sports gamble you can't know what will happen at a soccer/football match or if the involved people will be doing their job without external influence, but you may try to analyze a big quantity of statistics and decide what you think is the best option for you to bet.
I sometimes play at places like
https://thepokiesaustralia.info/ where I can always choose any gambling game and have fun!
Resuming this: I think mind games like Poker is the best option for you to gamble, as you can win money with consistency and with fun, but you may try to gamble at sports if you want (this is not the best option, but you can improve your results if you are a good analyst).