Picking the right generator comes down to matching the output to your tools....

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

Picking the right generator comes down to matching the output to your tools. Check the wattage so you don't stall the motor. Go for petrol if you need portability, or diesel for long, heavy-duty shifts. Be mindful of noise if you are working near houses