Could add a 3rd axle and get the GVWR moved up to 16,000# if your truck is 10,000#.
If you want more, get a Non Commercial CDL.
A driver needs a CDL if the vehicle meets one of the following definitions of a CMV: Class A truck. Any combination of vehicles with a GVWR (Gross Vehicle Weight Rating) of 26,001 or more pounds (11,793 kg) provided the GVWR of the vehicle(s) being towed is in excess of 10,000 pounds (4536 kg).