Well You can search on various freelancing sites like Fiverr, People Per Hour or Upwork but I would like to suggest you that if you want a good, quality and attractive design website then hire a good UI designing who will take care of both quality and responsiveness.

WebClues Infotech is leading user experience design company that serves global clients and can be your perfect partner in setting up a distinct KPI for you as per as UI designing, user research and UX process goes.

Website link: http://www.webcluesinfotech.com/