How do foreigners find clinics in South Korea?

I've been thinking about trying some treatments in Korea lately, but I'm a little worried because it's my first time. I see there are so many clinics here, but I don't know how to distinguish between reputable and unreliable ones 😅

Do any of you have experience or have had anything done there? I'd like to ask what I should check during a consultation? For example, do they have staff/interpreters who speak English or Vietnamese? Or what should I prepare beforehand? I'm a little anxious because I don't want to encounter any problems during the consultation.

Secondly, does anyone know what kind of questions clinics usually ask during a consultation? I want to make sure I understand everything they say before deciding 💭 Thanks in advance!