What are some tips for finding a trustworthy clinic in South Korea?

Hi, this is Aoi. I'm interested in cosmetic treatments in Korea, and I'm curious about how foreigners find reliable clinics, so I'd like to ask some questions.

I'm particularly concerned about language support. How do you find clinics that offer consultations in Japanese? Do they have interpreters, or do they only offer consultations in English? What's it really like? Also, how do you determine if a clinic is trustworthy during the consultation?

Besides review sites and social media, is there anything else I should check? For example, what should I ask during the initial consultation? If anyone has experience, I'd love to hear your advice. I want to receive treatment with peace of mind, so please share your real opinions!