1. China Red Arrow Rescue Team.
2. Polaris Rescue Team.
3. Rams.
4. Green Field Rescue Team.
5. Blue Panther Rescue Team.
6. Zhongan Rescue Team.
7. Shenzhen Mountain Rescue Team.
8. North-South Road Radio Rescue Team.
9. A foundation rescue team.
These are some teams that help others for free. I hope they can help you solve the problem. Please feel free to ask me if you have any other questions.