How do foreigners find clinics in Korea?

Hello everyone, I'm Hien from Vietnam. I'm looking to try some aesthetic services in Korea on my next trip, but I'm not sure how to find a trustworthy clinic. I'm worried about communication and fully understanding what the doctors explain, as my English isn't very good.

Do any of you have experience with searching? What should I check before booking an appointment? Do clinics usually provide interpreters, or should I find one myself? And are there any ways to confirm that a clinic is safe and reputable?

Please share your experiences with me. Thank you so much!