Graphic Design Freelancer needed for an emerging starup

Hello, I am co-founder&CEO of an emerging startup that specializes in small mobile electric vehicles. We are working on the new generation of electric scooters, bikes, skateboards, and motorcycles. We are also developing electric devices for people with disabilities. Our company is now preparing for the final launch of the brand and we are looking for a freelancer that could help us with 3D graphics and design sketches. It's for marketing and development purposes. We don't demand a full-time commitment, it's more like a part-time job.
We prefer freelancers from the US, NEW YORK/PENNSYLVANIA/NEW JERSEY
Best regards,
Adam