Changing from a tourist visa to a work visa is tricky. You'll likely need to find an employer to sponsor you and apply for a work visa from outside the US.

Unfortunately, tourist visas don't allow for work. If you want to work in the US, you'll need to find an employer to sponsor your work visa application, usually from your home country.

You can't directly switch from a tourist visa to a work visa while in the US. You'll need to leave the country and apply for a work visa from abroad.