I tried to but it is really hard to find a English Language review of the accomodation places in this old town. For experience is there should be one or two hotels there and most others are inns, hostels within the water town. There is a Chinese web introducing all the ancient towns in China with detailed information but it is in Chinese.
You do not need to know which hotel to stay. You can just decide when you get there. For homestay, inns and hostels, you can get into and have a look, then choose one of them.