Rendering for Portfolio?

Hi there I have a question, if I have an object I want to render out, what a good idea to keep in mind when rendering it. I mean I want to render out my object to show in my portfolio but what is a good idea to keep in mind. Should I make my own background and put it in there to look presentable for my portfolio. Or is there a feature in substance painter I should use. Just like to know a good approach to showing a render image for my portfolio.