Do heists, especially Cayo Perico and The Diamond Casino Heist
Run VIP/CEO work like Sightseer and Hostile Takeover
Use the Acid Lab and keep it supplied and upgraded
Buy and sell high-demand businesses like Bunker, Nightclub, and Agency
Complete Time Trials and HSW Time Trials
Grind Contact Missions with quick payouts
Sell special cargo and vehicle cargo
Do Auto Shop contracts
Run Salvage Yard robberies
Participate in weekly bonus events and double-money activities
Sell full warehouse and business stock during bonus weeks
Use the Kosatka for repeatable solo money-making
Keep passive businesses producing while you do other jobs
Sell excess bunker and nightclub stock regularly
Join public sessions only when necessary for bonus payouts
Use an armored vehicle or fast aircraft to reduce mission time
Avoid spending money on unnecessary vehicles and cosmetics
Focus on one or two money methods instead of switching constantly