What are the best ways to maximize payouts in gta v story mode?

The primary method for maximizing payouts in GTA V Story Mode involves leveraging the assassination missions that Franklin can trigger after completing certain story missions. These missions, when properly timed, allow players to manipulate the stock market through strategic short selling and buying. The most profitable approach involves killing specific targets that cause corresponding companies' stocks to crash, then immediately short selling those stocks before the market recovers. Additionally, completing all Stranger and Freak missions, side activities, and collecting all collectibles provides substantial bonus payouts. The 'Third Way' ending path also offers unique financial opportunities through specific stock market manipulations. Players should also focus on completing all setup missions for heists, as these provide significant upfront payments, and taking the highest percentage cuts during cooperative heists maximizes individual earnings.