Don't just grab the biggest unit. Calculate your total watts so you don't...

https://cleaneverycorner.com/can-i-upgrade-to-a-bigger-generator-if-my-project-changes/

Don't just grab the biggest unit. Calculate your total watts so you don't overload it, choose fuel that matches your runtime needs, and mind the noise if you’re in a quiet street. Always check for an RCD safety switch to prevent shocks