Which is better in Korea, the E-2 visa or the H-1 visa? Compare and choose the best option for you.

Hello! I am planning to move to Korea in 2027, but I am worried about visa issues. I currently live in the UK and will be a first-time foreigner going to Korea. Originally, I was thinking of going on an E-2 visa and working at EPIK or a private school. However, I heard some negative stories about EPIK, and I also received recommendations that direct hiring at private schools is good. I have seen full-time sponsor job postings on places like Facebook or Dave's ESL Cafe, so I think that could be okay. I am also looking into the H-1 Working Holiday visa recently, as I am drawn to the idea of experiencing Korea leisurely while working as a part-time English teacher. But the problem is I am not sure if I can consistently find part-time jobs. I have saved around 15 million won, but I don't want to live off of that alone. I need a stable job. Is there anyone who has found a part-time English teaching job with an H-1 visa? I am curious if it is possible to work consistently! Please give me some advice~ Thank you!!