Holiday Inn Express Seoul Hongdae is a good hotel close to Hongdae Area - it has scored 8.7 over 1,422 reviews from HotelsCombined users.
The most popular hotel near Seoul Station is Shilla Stay Seodaemun, with 1,492 HotelsCombined users scoring it 8.1/10.
A good hotel near COEX Mall is Glad Gangnam Coex Center, which has been rated 8.3/10 by 1,834 HotelsCombined user reviews.