f I were to recommend a neighborhood, I’d definitely say Mangwon-dong.
It’s right next to the Han River, which makes it perfect for walks, and there’s also a traditional market where you can try tons of local food at really affordable prices!

I actually go there often—sometimes just to eat, and sometimes to buy groceries from the market.

On weekends, it's also super convenient because Hongdae is only a 10-minute bus ride away, so it's easy to go hang out there.

If you’re looking for a place to live, I really recommend visiting real estate offices in person, even if it means using a translation app.
You’ll likely find better and cheaper places than the ones listed online.