How do you guys find loads for BOX Truck

Can someone provide me more information on how to get loads for Box truck or hotshot, I have tried so many different ways, but I have not been able to get loads, or if I find any they are really cheap, Im not sure if Im looking on the wrong place or I have the wrong expectation for this type of equipment if someone can help me out to understand the usage of the load board for this will be amazing and I will be willing to expend some time to understand the process and maybe pay if need it to do so. Thanks in advance for all your help.