Migration questions

Need to move / copy everything from 2013 Mac Pro 2TB drive ( 250GB Free )

To a

2019 Mac Pro 2TB ( 405GB Free)

When I use migration assistant it says that there is not enough space on the 2019 drive.

I do not need anything that is on on the 2019 drive so should I zero the 2019 drive and erase everything?

Any help?

R