Can anyone recommend a tax accountant in Gangnam who can help foreigners resolve tax issues?

Hello! I'm a foreigner who has been living in Korea for 5 years now. I currently live in Gangnam, and I have a lot of worries about tax issues. I don't know how to handle tax filings and National Tax Service (NTS) matters while continuing to live in Korea. I've inquired at a few large law firms, but they don't seem to take individual clients very well. So, I'm looking for smaller-scale tax accountants or personal lawyers, but I'm not sure where to start. If anyone has experienced a similar situation, I would appreciate any advice. Especially, if you could recommend tax accountants or small law firms that are good at helping foreigners, I would be really grateful! I have looked into a few places, but most of them either have very expensive initial consultation fees or don't take foreign clients at all. If anyone could share their personal experiences, I would be extremely grateful!