In some cases, you may be able to obtain a "bonded title" if the original title is lost or unavailable. A bonded title requires you to purchase a surety bond, which serves as a guarantee that you have good title to the vehicle. The bond amount is usually equal to the value of the vehicle.
It is important to note that the exact rules and requirements for registering a vehicle without a title can vary from state to state. Therefore, you should contact your local DMV or consult the applicable motor vehicle laws in your jurisdiction for specific guidance.