How to understand a hospital's rating for a foreigner?

Hello, friends! I'm Saraa from Mongolia. I'm interested in Korean aesthetic and medical clinics, and I have many choices. However, my main problem is that I don't know Korean well, so it's very difficult for me to read clinic philosophies. Where can I find reliable reviews on websites or platforms? Where do foreigners generally find good clinic reviews?

I also have a question: when reading reviews, what are the red flags or warning signs? For example, what are the indicators of a bad review or something to be skeptical about in a review? My fellow enthusiasts who are foreigners are eager to help us choose a clinic.

If you have any experience with this issue, please share your thoughts! It would be very helpful to understand some of the nuances. Thank you!