How do foreigners find reputable clinics in Korea?

Hi everyone! I'm Thao, from Vietnam. I'm planning to go to Korea for some aesthetic procedures, but it's my first time, so I'm a bit worried about finding a trustworthy place. Do any of you have experience or know how to check a clinic/spa before deciding?

I'd like to know, for those who have been, what do you usually check? For example, do they offer English or Vietnamese support, or do I need to hire a private interpreter? During consultations, do they explain the process and risks thoroughly? I don't want to rush, so I want to prepare well in advance.

Or if any of you have been before, how did you search for information? Are online reviews reliable? Thank you all so much! 😊