build an online business and work on it and promote it till it flourish

i need to build an online profitable business..so i need help to establish the business on line and to continue working with the freelancer to make the business flourish. i need one who has experience on the online business profitable web site example : build a dropshipping profitable web site and finding the resource for the products and the appropriate niche that is profit. or an affiliate website that can work and give profit.