Most slots' payout percentage is between 90 and 96 percent. So, any slot game with a return to player or payout percentage of 96% or higher is a great choice. A few RTP points may not seem like much but trust us when we say that it makes a big difference over thousands of spins.
Overall, there is no strategy that will accurately predict when a slot machine will pay out. That is the whole point of slot machines. They were created to be random, and to not allow people to know when they will hit.