28 reviews rated X9 Hotel with an average score of 7.1/10. It may also be worth looking into the Green Hadong Hotel, which received a rating of 8.1/10 from 29 reviews. Bt6-B24 Villa could also be a good option, with a score of 8.0/10 from 27 reviews.
A good hotel close to Hanoi Old Quarter is Hilton Hanoi Opera (rated 8.1/10 from 558 reviews).
The most popular hotel near Hoan Kiem Lake is Hilton Hanoi Opera, with 558 HotelsCombined users scoring it 8.1/10.