Research on Local Dating and Matchmaking Networks in Vietn

I am looking for someone based in Vietnam to research and identify local dating and matchmaking networks. This is a practical research project for a private individual. The goal is to identify matchmaking networks and understand how local matchmaking services operate. This is not an academic research project or a business partnership. Relevant experience and existing contacts in the local matchmaking industry would be a significant advantage, but they are not required. Please briefly explain how you can help with this project and describe any relevant experience you have.