Add more people to my WeChat group or add me to existing relevant WeChat groups

I have set up a group on WeChat in Mandarin Chinese for women who want to slim down or are on diet (group QR code attached). Your job is simple: either add more RELEVANT women to my group or add me to existing WeChat groups in Chinese that are for ladies on a diet. Altogether I need 2500 women in my groups. Once the first group is full I will create more slimming groups.