You can purchase a clamp stand for this.. I personally lean it against my surroundings (for example, if I want a golden light to hit from the left, I'll find a rock, bench, or my equipment bag to prop it up)
1 round circular which would be like a shoot through diffuser , but comes with zipper cover to convert to black, silver,gold or white , it is very nice i like mine a lot , very handy , works very well and very affordable, I checked them out at my local camera shop and for just a shoot thru/silver one was $40.00, I am so glad I purchased this one, the quality seems of the same as the one at store, trust me you will like it and for an exceptional price , Good luck happy shopping.
There is a YouTube video, search for that. When holding it by the rim cross your hands in front of you and sort of slide the the down the edge pushing the outer band towards each other. At the end it looks like 3 small circles instead of the one big one. Use the bag as a guide. Good luck