I lost my airpods pro charging case but i have the airpods with me however the case is lost. What can be done?

Unfortunately, there is no method via Find My to locate your missing AirPods charging case. Your only option it to go physically looking for them. Should that prove unsuccessful, you would have to purchase a replacement.

Ref:

• Replace your AirPods - Apple Support
• Set up your replacement AirPods or charging case - Apple Support