You can't run QB Desktop 2016 on Sonoma. You can purchase a new QB Desktop 2024 Mac Plus license to run on your new machine. I don't recommend to purchase the license via that link. It is better to call Intuit Sales team by phone to purchase it. Another option, you can contact @Fiat Lux - ASIA to purchase a new legit license + you can get $100 cashback. They will also offer a cheaper option if you don't need to run any add-ons (e.g QB Payroll, QB Payment).