This video explains how to use the Xrite color checker and Premiere Pro to instant color correct. You can use a light stand along with a mini clamp to hold the color checker in place when working alone.
https://www.youtube.com/watch?v=ugIIHIe9D8kBe sure when filming you get white balance and exposure properly set in camera for this to work best.
https://youtu.be/Zv-pIhoyBLUIn-depth tutorial for getting perfect color and exposure in camera using the Xrite color checker.
https://youtu.be/yNSRrIf8rY8