Computer Stores

I am looking to set up an online store to sell computer products, including laptops, desktops, and accessories. I am open to any brands or models, and plan to list more than 100 products on the store to corporate I am looking for assistance to make digital marketing that can to get clients for my products, as well as help with product end customer, on closing deals I'm looking for an experienced freelancer who can help me through client database to reach end customer for potential sales.